Public health management of mass gatherings: the Saudi Arabian experience with MERS-CoV

Interorganizational Knowledge Transfer in Mass Gatherings: Exploring the Health and Safety Stakeholders' Perceptions Participating in the Athens Marathon

INTRODUCTION

Mass gatherings (MGs) usually represent significant challenges for the public health and safety sector of the host cities. Organizing a safe and successful mass event highly depends on the effective collaboration among different public and private organizations. It is necessary to establish successful coordination to ensure that all the key stakeholders understand their respective roles and responsibilities. The inconsistency between the variety of participating agencies because of their different culture can result in delays in decision making. Interorganizational knowledge transfer can improve the success of the event; however, knowledge transfer among professionals and agencies in MGs is not well-documented.

OBJECTIVE

This study used the 2018 Athens Marathon as the empirical setting to examine how interorganizational knowledge transfer was perceived among the multiple public health and safety professionals during the planning stage of the event.

METHODS

Data comprised 18 semi-structured, in-depth interviews with key informants, direct observations of meetings, and documentary analysis. Open coding and thematic analysis were used to analyze the data.

RESULTS

Findings indicated that sharing the acquired knowledge was a necessary and challenging step to create an enabling collaborative environment among interacting organizations. Experiential learning was identified as a significant factor, which helped promote joint understanding and partnership work. Informal interpersonal exchanges and formal knowledge transfer activities facilitated knowledge sharing across organizational boundaries, helping to break down silos.

CONCLUSION

Interorganizational knowledge transfer is a necessary step to achieve joint understanding and create an environment where interaction among agencies can be more effective. The study findings can be beneficial for organizers of marathons and other mass sporting events to support valuable interorganizational collaboration and conduct a safe event.

Genetic diversity and molecular analysis of human influenza virus among pilgrims during Hajj

The risk of transmission of respiratory tract infections is considerably enhanced at mass gathering (MG) religious events. Hajj is an annual Islamic MG event with approximately 3 million Muslim pilgrims from over 180 countries concentrated in Makkah, Saudi Arabia. This study aimed to investigate the genetic diversity of influenza viruses circulating among pilgrims during the Hajj pilgrimage. We performed a cross-sectional analytical study where nasopharyngeal swabs (NPs) from pilgrims with respiratory tract illnesses presenting to healthcare facilities during the 2019 Hajj were screened for influenza viruses. Influenza A subtypes and influenza B lineages were determined by multiplex RT-PCR for positive influenza samples. The phylogenetic analysis was carried out for the hemagglutination (HA) gene. Out of 185 nasopharyngeal samples, 54 were positive for the human influenza virus. Of these, 27 were influenza A H1N1 and 19 H3N2, 4 were untypable influenza A, and 4 were influenza B. Phylogenetic analysis revealed that the H1N1 and H3N2 strains differentiated into different and independent genetic groups and formed close clusters with selected strains of influenza viruses from various locations. To conclude, this study demonstrates a high genetic diversity of circulating influenza A subtypes among pilgrims during the Hajj Season. There is a need for further larger studies to investigate in-depth the genetic characteristics of influenza viruses and other respiratory viruses during Hajj seasons.

Physicians' Knowledge, Practices, and Perceptions of Reporting Communicable Diseases at Primary Health Care Centers in Jeddah, Saudi Arabia: A Cross-Sectional Study

Background Jeddah has the highest international traffic and is among the most diverse cities in Saudi Arabia. The chance of importing an emerging communicable disease is significant, particularly during the religious seasons. Therefore, timely and accurate reporting of communicable diseases at primary health care centers (PHCCs) is crucial. Objectives The main objective of this study was to assess physicians' knowledge, practices, and perceptions of reporting communicable diseases at PHCCs in Jeddah, Saudi Arabia. Methods The study was a cross-sectional study comprising 143 physicians from all PHCCs in Jeddah from October 2017 to February 2018. An electronic questionnaire was used to collect data to assess the physicians' knowledge, practices, and perceptions related to reporting communicable diseases at PHCCs. Results A total of 106 physicians participated in the study. Although only 21.7% of the physicians had received training on reporting communicable diseases, the average knowledge score for the six commonly reported diseases was 72%. More than half (58.5%) of the physicians indicated that they had reported at least one disease. However, there was no agreement on who should be responsible for reporting communicable diseases at PHCCs. Furthermore, some obstacles were perceived that could prevent disease reporting, including physicians not knowing which diseases to report (66%), not knowing how or whom to report to (54.7%), and a limited diagnostic or laboratory capacity (52.8%). Conclusions Reporting communicable diseases at PHCCs was of adequate quality. However, some obstacles must be addressed, and regular applied training must be provided. More extensive assessments are needed to improve the reporting of communicable diseases locally and nationally.

Estimating social contacts in mass gatherings for disease outbreak prevention and management: case of Hajj pilgrimage

Background

Most mass gathering events have been suspended due to the SARS-CoV-2 pandemic. However, with vaccination rollout, whether and how to organize some of these mass gathering events arises as part of the pandemic recovery discussions, and this calls for decision support tools. The Hajj, one of the world's largest religious gatherings, was substantively scaled down in 2020 and 2021 and it is still unclear how it will take place in 2022 and subsequent years. Simulating disease transmission dynamics during the Hajj season under different conditions can provide some insights for better decision-making. Most disease risk assessment models require data on the number and nature of possible close contacts between individuals.

Methods

We sought to use integrated agent-based modeling and discrete events simulation techniques to capture risky contacts among the pilgrims and assess different scenarios in one of the Hajj major sites, namely Masjid-Al-Haram.

Results

The simulation results showed that a plethora of risky contacts may occur during the rituals. Also, as the total number of pilgrims increases at each site, the number of risky contacts increases, and physical distancing measures may be challenging to maintain beyond a certain number of pilgrims in the site.

Conclusions

This study presented a simulation tool that can be relevant for the risk assessment of a variety of (respiratory) infectious diseases, in addition to COVID-19 in the Hajj season. This tool can be expanded to include other contributing elements of disease transmission to quantify the risk of the mass gathering events.

Interorganizational Communication at Mass Gatherings: Professionals' Perceptions during the Planning and Implementation Stage of Marathon Events

INTRODUCTION

Mass gatherings (MGs) often bring together professionals and organizations that collaborate irregularly or have never engaged in joint working. They involve interaction and communication among multiple and diverse services, which can often prove challenging. Planning such an event is of paramount importance for its success, and interorganizational communication ranks among its most important aspects. Nonetheless, there is limited empirical evidence to support interagency communication in MGs.

OBJECTIVE

This study used the 2017 Athens Marathon (Athens, Greece) as the empirical setting to examine how interorganizational communication was perceived among the multiple public health and safety professionals during the planning and implementation phase of the event.

METHODS

Data comprised 15 semi-structured in-depth interviews with key informants, direct observations of meetings and the event itself, and documentary analysis. Open coding and thematic analysis were used to analyze the data.

RESULTS

Findings indicated three key components of interorganizational communication in such an event: (1) shared situational awareness; (2) interorganizational understanding; and (3) implementing liaison officers.

CONCLUSION

This study outlined the factors that influenced interorganizational communication before and during a MG. Practical implications arising from this study may inform the way organizers of marathons and other mass sporting events can engage in effective interorganizational communication.

Evaluation of Communicable Disease Surveillance System at Primary Health Care Centers in Jeddah, Saudi Arabia

Introduction

Jeddah is one of the busiest and multicultural cities in Saudi Arabia. It poses a higher risk of importing and spreading emerging communicable diseases because of the increased international traffic during the seasons of Hajj and Umrah. The Saudi Ministry of Health (MOH) emphasizes the role of primary health care centers (PHCCs) as the first gate of the health care system. Therefore, having an efficient and effective communicable disease surveillance system (CDSS) at the level of PHCCs is crucial to provide early warning and sustain health security.

Methods

This study took place at all PHCCs in Jeddah city between September 2017 and January 2018 as a descriptive cross-sectional study. Data were collected from CDSS key informants using an interview-based questionnaire to evaluate the performance of CDSS by assessing its core and support functions at PHCCs.

Results

The majority (93%) of PHCCs had reporting forms, and all of them had working laboratories. However, about 41% of PHCCs had the standard manual and only in the Arabic language, 12% were performing basic data analysis, and none of them had a written plan for epidemic response. Although Internet access was available at only 33% of PHCCs, other resources such as computers, printers, and personal protective equipment (PPE) were available at all PHCCs.

Conclusion

CDSS at PHCCs had an acceptable performance especially in functions such as reporting, confirmation, and supervision. However, other functions such as detection, registration, data analysis, epidemic preparedness, and feedback need to be strengthened. More comprehensive evaluations are required to further enhance the CDSS in Jeddah and Saudi Arabia.

An Aspect of Kumbh Mela Massive Gathering and COVID-19

Purpose of Review

Kumbh Mela, a religious gathering of Hindus held in India, is the largest massive gathering event in the world. The COVID-19 pandemic is an unprecedented healthcare crisis in recent times with effects reverberating in all spheres of human lives. India has registered the second highest number of COVID-19 cases. This paper aims to dwell in the religious and social background of Kumbh Mela massive gathering, as well as the ritualistic practices that could potentially entail public health risks in the current situation. It also aims to identify possible preparatory and interventional measures to evade such risks.

Recent Findings

In recent years, the increase in the number of people attending the Kumbh Mela has been phenomenal. Congregants are put up at the holy sites for several days. The sheer number of people assembling at the religious venues poses a great challenge to manage the crowds, to cater to the requirements of basic amenities, and to meet their healthcare needs. Some of the ritualistic practices could heighten the risk for transmission of respiratory pathogens. The COVID-19 pandemic has escalated over the past few months in India. The pandemic is expected to sustain its tempo in India throughout the foreseeable future. Organization of the forthcoming Kumbh Mela needs meticulous planning.

Summary

Kumbh Mela is a Hindu religious gathering at the banks of India’s rivers, held periodically. It witnesses assembly of huge numbers of people and has the potential to amplify the COVID-19 pandemic in India; this could overwhelm the healthcare system.

Morbidity among Arab-Israeli and Palestinian Hajj Pilgrims: A Prospective Study

Thousands of Palestinian and Arab-Israeli pilgrims travel to Mecca each year to complete their pilgrimage. To the best of our knowledge, no previous studies have characterized the infectious and noninfectious morbidity among Arab-Israeli or Palestinian Hajj pilgrims. Thus, we designed and conducted an observational questionnaire-based study to prospectively investigate the occurrence of health problems among these Hajjis who traveled to complete their Pilgrimage during 2019 Hajj season. For the purpose of the study, questionnaires were distributed to Hajj pilgrims at three different time occasions-before travel, inquiring on demographics and medical comorbidities; and 1 and 4 weeks after returning recording any health problems encountered during or after travel. Initial recruitment included 111 Hajjis. The mean age of responders was 49.5 (±9.1) years, with an M:F ratio of 1.3:1. The mean travel duration was 18.7 (13-36) days. Altogether, 66.3% of the pilgrims reported at least one health problem during and after the trip, of which 38.6% sought medical attention. Five (4.8%) hajjis were hospitalized, including life-threatening conditions. Cough was the most common complaint (53.8%), and 11.5% also reported fever. Pretravel counseling was associated with reduced outpatient and emergency room visits. We therefore concluded that a high rate of morbidity was reported among this cohort of Hajj pilgrims with a morbidity spectrum similar to pilgrims from other countries. Pretravel consultation with the purpose of educating the pilgrims on the health risks of Hajj may help reduce the morbidity for future Hajj seasons.

Bat-Borne Coronaviruses in Jordan and Saudi Arabia: A Threat to Public Health?

Emerging infectious diseases are of great concern to public health, as highlighted by the ongoing coronavirus disease 2019 (COVID-19) pandemic. Such diseases are of particular danger during mass gathering and mass influx events, as large crowds of people in close proximity to each other creates optimal opportunities for disease transmission. The Hashemite Kingdom of Jordan and the Kingdom of Saudi Arabia are two countries that have witnessed mass gatherings due to the arrival of Syrian refugees and the annual Hajj season. The mass migration of people not only brings exotic diseases to these regions but also brings new diseases back to their own countries, e.g., the outbreak of MERS in South Korea. Many emerging pathogens originate in bats, and more than 30 bat species have been identified in these two countries. Some of those bat species are known to carry viruses that cause deadly diseases in other parts of the world, such as the rabies virus and coronaviruses. However, little is known about bats and the pathogens they carry in Jordan and Saudi Arabia. Here, the importance of enhanced surveillance of bat-borne infections in Jordan and Saudi Arabia is emphasized, promoting the awareness of bat-borne diseases among the general public and building up infrastructure and capability to fill the gaps in public health preparedness to prevent future pandemics.

Health information, attitudes and actions at religious venues: Evidence from hajj pilgrims

Mass gatherings for sporting events, music shows, and religious needs continue to grow in our urban areas, requiring local authorities to develop safety procedures to mitigate the challenges of keeping the attendees safe. These challenges are even more pronounced at pilgrimage venues where social distancing and contact avoidance are difficult as pilgrims are required to perform various rituals in close proximity with others, in a sequential manner, either daily or weekly, as per their religious tenets. Over two million pilgrims attend the Hajj pilgrimage in Saudi Arabia annually. Keeping the local and visiting pilgrims safe from crowd crush, sunstroke, skin infections, recurrence of prior medical issues, and contagious diseases requires the Saudi government to allocate huge investments for health communication and prevention programs every year. However, there is no evidence to date that has empirically tested whether Hajj pilgrims' are able to receive such information and are subsequently adopting various health promoting behaviors. This study aims to do that by framing it within the Health Belief Model. Data collected and analyzed from 245 pilgrims in Makkah between September 9th-19th, 2017 suggests that roughly 48% of the pilgrims adopted all five protective measures. However, language barriers, limited health care facilities, and difficulties in purchasing prescription mediciens were cited as impediments to adopting healthy measures. The study concludes with recommendations for the KSA government agencies, Hajj authorities, Mission authorities and pilgrims, during various phases of travel-- i.e. pre-travel, during the pilgrimage and post-travel, in light of new emerging health threats.

Organizing Health Care Services for the 2017 "Athens Marathon, The Authentic:" Perspectives on Collaboration among Health and Safety Personnel in the Marathon Command Center

INTRODUCTION

Mass gatherings pose unique challenges for interorganizational collaboration. The "Athens Marathon, The Authentic" is a 42,195m (26.2mile) race with approximately 18,000 runners that increases annually. On the same day, additional races take place and a grand total of more than 50,000 runners fill the city center of Athens, Greece. Responding effectively to unexpected incidents requires comprehensive planning, clear decision-making structure, and effective collaboration. Nonetheless, there is limited empirical evidence to support interagency collaboration in mass gatherings.

PURPOSE

This study used the 2017 Athens Marathon and related races as the empirical setting to examine how interagency collaboration was perceived among the multiple public health and safety professionals involved in the marathon command center.

METHODS

Data comprised 10 semi-structured, in-depth interviews with key informants, direct observations of meetings and the event itself, and documentary analysis. Open coding and thematic analysis were used to analyze the data.

RESULTS

Findings indicated four key components of interagency collaboration in such an event: organizational culture, team synthesis, on-site spatial planning, and the usage of radio-amateurs.

CONCLUSION

This study outlined the factors that shaped interagency collaboration in the context of a mass event. Practical implications arising from this study may inform the ways organizers of marathons and other mass sporting events can engage in effective partnerships and joint working.

Protocol for development of a risk assessment tool for planning and management of religious mass-gathering events of India-a health system-strengthening initiative

Background

Religious mass gatherings (MGs) have always been an integral part of our society. At the outset, mass-gathering events provide challenging settings to plan a suitable emergency public health response. Published studies basically talk about retrospective reviews, case studies of the public health preparedness, or health care provided at individual events. Developing an understanding of the variables associated with MGs is the first step for public health managers. Risk assessment (RA) is a crucial part of pre-event planning as it helps foresee potential risks. Based on RA, one can develop preventive measures and ensure that the infrastructure to control the potential problems is in place. This study is an attempt to systemize RA process during MG events in a country that is culturally rich but with poor resources to handle such events. A RA tool will be developed for planning and management of religious MG events of India.

Methods/design

Various strategies will be used to develop the risk assessment tool (RA tool). Extensive review of literature clubbed with key informant interviews will be done in order to identify the risk variables and decide the domains and items of the tool. Further, this tool will be developed as a mobile-based application. The feasibility of the mobile-based RA tool will be tested in real-time MG event in one part of the country. Concurrently in the same event, a community survey of residents and visitors will be done in order to assess public perceptions of public health and environmental risks associated with MG events.

Discussion

The findings of this study will provide insights into the public health and environmental concerns that need to be considered if preventive strategies and intervention programs are to be designed for MG events. A “RA Tool,” which can be used in the planning and management of MG events by the public health managers will strengthen the existing health systems preparedness plans for MGs.

Enhanced surveillance for severe pneumonia, Thailand 2010-2015

Background

The etiology of severe pneumonia is frequently not identified by routine disease surveillance in Thailand. Since 2010, the Thailand Ministry of Public Health (MOPH) and US CDC have conducted surveillance to detect known and new etiologies of severe pneumonia.

Methods

Surveillance for severe community-acquired pneumonia was initiated in December 2010 among 30 hospitals in 17 provinces covering all regions of Thailand. Interlinked clinical, laboratory, pathological and epidemiological components of the network were created with specialized guidelines for each to aid case investigation and notification. Severe pneumonia was defined as chest-radiograph confirmed pneumonia of unknown etiology in a patient hospitalized ≤48 h and requiring intubation with ventilator support or who died within 48 h after hospitalization; patients with underlying chronic pulmonary or neurological disease were excluded. Respiratory and pathological specimens were tested by reverse transcription polymerase chain reaction for nine viruses, including Middle East Respiratory Syndrome Coronavirus (MERS-CoV), and 14 bacteria. Cases were reported via a secure web-based system.

Results

Of specimens from 972 cases available for testing during December 2010 through December 2015, 589 (60.6%) had a potential etiology identified; 399 (67.8%) were from children aged < 5 years. At least one viral agent was detected in 394 (40.5%) cases, with the most common of single vial pathogen detected being respiratory syncytial virus (RSV) (110/589, 18.7%) especially in children under 5 years. Bacterial pathogens were detected in 341 cases of which 67 cases had apparent mixed infections. The system added MERS-CoV testing in September 2012 as part of Thailand’s outbreak preparedness; no cases were identified from the 767 samples tested.

Conclusions

Enhanced surveillance improved the understanding of the etiology of severe pneumonia cases and improved the MOPH’s preparedness and response capacity for emerging respiratory pathogens in Thailand thereby enhanced global health security. Guidelines for investigation of severe pneumonia from this project were incorporated into surveillance and research activities within Thailand and shared for adaption by other countries.

Content validity of the newly developed risk assessment tool for religious mass gathering events in an Indian setting (Mass Gathering Risk Assessment Tool-MGRAT)

Background

Risk assessment (RA) for mass gathering events is crucial to identify potential health hazards. It aids in planning and response activities specific to the event but is often overlooked by the event organizers. This paper reports the content validity process of a newly developed tool called Mass Gathering Risk Assessment Tool (MGRAT), which intends to assess the risks associated with religious mass gathering events in Indian settings.

Methods

Qualitative approach was followed to identify the risks associated with mass gathering events and to identify the domains and items to be included in the RA tool. The draft tool was shared with six experts who were selected by the convenient method; selected experts were requested to assess the tool and give their comments about the domains, items, relevant responses, and overall presentation of the tool using content validity questionnaire. Content validity index and Fleiss kappa statistics were calculated to assess the agreement between multiple raters.

Results

Agreement proportion expressed as scale-level content validity index (S-CVI) calculated by the averaging method is 0.92. S-CVI; calculated by universal agreement is 0.78. Fleiss kappa statistics to measure the agreement between multiple experts after adjusting the component of the chance agreement is 0.522 (95% CI: 0.417, 0.628, P value: 0.001).

Conclusion

MGRAT is a valid tool, which has an appropriate level of content validity. As the number of raters increases, there will be difficulty in achieving consensus among all the items, which is the reason for lower Content Validity Index/Universal Average (CVI/UA) when compared with Content Validity Index/Average (CVI/Ave). Fleiss kappa statistics also indicated moderate agreement among the raters beyond the chance agreement, which also supports the appropriate content validity of MGRAT.

Migration in Saudi Arabia: Present and Prospects

As compared with other Gulf Cooperation Council (GCC) countries, Saudi Arabia has distinct demographic features. This leads the Saudi government to take measures to revisit its existing policies and schemes concerned with population. With this brief outline, migration data used in this article are pitched to understand five dimensions: (1) to look at the Saudi citizens’ migration trends within the Kingdom, (2) to analyse the impact of migration on the Kingdom’s population growth and also on the neighbouring GCC countries, (3) to look at the changes taking place annually in the Kingdom’s migration trends and in the other GCC countries, (4) to examine the migrants, looking at their origin place and (5) to analyse the variation between immigrants and Saudi Arabia citizens in terms of demographic parameters like population growth, sex ratio, broad age groups and age-sex distribution. Various databases available at both national and international levels were taken to address the five dimensions. The findings showed that push and pull factors and infrastructure differentials are taken into consideration while Saudi population internally migrate. All the GCC countries, including Saudi Arabia, experience international migration streams subject to the labour requirements and governmental regulations for both Arabs and non-Arabs. Immigrant demographics are characterized by Saudi Arabia’s labour demand controlled by adult males from other countries.

Leading interagency planning and collaboration in mass gatherings: public health and safety in the 2012 London Olympics

OBJECTIVES

Planning and implementing public health initiatives in mass gatherings such as the Olympic Games pose unique challenges for interorganizational collaboration, which involves interaction among multiple and diverse agencies. Nonetheless, there is limited empirical evidence to support interagency collaboration and public health planning decisions in mass gatherings and how leadership can shape such interactions. We empirically explored these topics in the 2012 London Olympics to identify lessons to inform planning for future mass gatherings.

STUDY DESIGN

This is a qualitative case study.

METHODS

Data comprised 39 semistructured interviews with key informants conducted before, during, and after the games; in addition, direct observations of field exercises and documentary analysis were also used. Open coding and thematic analysis was used to analyze the data.

RESULTS

We identified two main leadership challenges that influenced interagency collaboration: organizational public health leadership and coordinating collaborative decision-making. Two facilitative conditions helped overcome the previous challenges: nurturing interorganizational linkages and creating shared understanding by activating codified frameworks at the organizational level.

CONCLUSIONS

Our study highlights leadership issues in interagency collaboration in mass gatherings. Practical implications arising from this study may inform the ways the organizers of mass gatherings, public health and safety agencies, and professionals can engage in effective partnerships and joint working.

Event based surveillance of Middle East Respiratory Syndrome Coronavirus (MERS- CoV) in Bangladesh among pilgrims and travelers from the Middle East: An update for the period 2013-2016

INTRODUCTION

Every year around 150,000 pilgrims from Bangladesh perform Umrah and Hajj. Emergence and continuous reporting of MERS-CoV infection in Saudi Arabia emphasize the need for surveillance of MERS-CoV in returning pilgrims or travelers from the Middle East and capacity building of health care providers for disease containment. The Institute of Epidemiology, Disease Control & Research (IEDCR) under the Bangladesh Ministry of Health and Family welfare (MoHFW), is responsible for MERS-CoV screening of pilgrims/ travelers returning from the Middle East with respiratory illness as part of its outbreak investigation and surveillance activities.

METHODS

Bangladeshi travelers/pilgrims who returned from the Middle East and presented with fever and respiratory symptoms were studied over the period from October 2013 to June 2016. Patients with respiratory symptoms that fulfilled the WHO MERS-CoV case algorithm were tested for MERS-CoV and other respiratory tract viruses. Beside surveillance, case recognition training was conducted at multiple levels of health care facilities across the country in support of early detection and containment of the disease.

RESULTS

Eighty one suspected cases tested by real time PCR resulted in zero detection of MERS-CoV infection. Viral etiology detected in 29.6% of the cases was predominantly influenza A (H1N1 and H3N2), and influenza B infection (22%). Peak testing occurred mostly following the annual Hajj season.

CONCLUSIONS

Respiratory tract infections in travelers/pilgrims returning to Bangladesh from the Middle East are mainly due to influenza A and influenza B. Though MERS-CoV was not detected in the 81 patients tested, continuous screening and surveillance are essential for early detection of MERS-CoV infection and other respiratory pathogens to prevent transmissions in hospital settings and within communities. Awareness building among healthcare providers will help identify suspected cases.

Influenza virus but not MERS coronavirus circulation in Iran, 2013-2016: Comparison between pilgrims and general population

BACKGROUND

The pilgrimage to Mecca and Karbala bring many Muslims to a confined area. Respiratory tract infections are the most common diseases transmitted during mass gatherings in Hajj, Umrah and Karbala. The aim of this study was to determine and compare the prevalence of Middle East respiratory syndrome coronavirus (MERS-CoV) and influenza virus infections among Iranian general population and pilgrims with severe acute respiratory infections (SARI) returning from Mecca and Karbala during 2013-2016.

METHODS

During 2013-2016, a total of 42351 throat swabs were examined for presence of influenza viruses and MERS-CoV in Iranian general population and pilgrims returning from Mecca and Karbala with SARI by using one step RT-PCR kit.

RESULTS

None of the patients had MERS-CoV but influenza viruses were detected in 12.7% with high circulation of influenza A/H1N1 (47.1%).

CONCLUSION

This study showed the prevalence of influenza infections among Iranian pilgrims and general population and suggests continuing surveillance, infection control and appropriate vaccination especially nowadays that the risk of influenza pandemic threatens the world, meanwhile accurate screening for MERS-CoV is also recommended.

Preparedness for the Rio 2016 Olympic Games: hospital treatment capacity in georeferenced areas

Recently, Brazil has hosted mass events with recognized international relevance. The 2014 FIFA World Cup was held in 12 Brazilian state capitals and health sector preparedness drew on the history of other World Cups and Brazil's own experience with the 2013 FIFA Confederations Cup. The current article aims to analyze the treatment capacity of hospital facilities in georeferenced areas for sports events in the 2016 Olympic Games in the city of Rio de Janeiro, based on a model built drawing on references from the literature. Source of data were Brazilian health databases and the Rio 2016 website. Sports venues for the Olympic Games and surrounding hospitals in a 10km radius were located by geoprocessing and designated a "health area" referring to the probable inflow of persons to be treated in case of hospital referral. Six different factors were used to calculate needs for surge and one was used to calculate needs in case of disasters (20/1,000). Hospital treatment capacity is defined by the coincidence of beds and life support equipment, namely the number of cardiac monitors (electrocardiographs) and ventilators in each hospital unit. Maracanã followed by the Olympic Stadium (Engenhão) and the Sambódromo would have the highest single demand for hospitalizations (1,572, 1,200 and 600, respectively). Hospital treatment capacity proved capable of accommodating surges, but insufficient in cases of mass casualties. In mass events most treatments involve easy clinical management, it is expected that the current capacity will not have negative consequences for participants.

Complex epidemiology of a zoonotic disease in a culturally diverse region: phylogeography of rabies virus in the Middle East

The Middle East is a culturally and politically diverse region at the gateway between Europe, Africa and Asia. Spatial dynamics of the fatal zoonotic disease rabies among countries of the Middle East and surrounding regions is poorly understood. An improved understanding of virus distribution is necessary to direct control methods. Previous studies have suggested regular trans-boundary movement, but have been unable to infer direction. Here we address these issues, by investigating the evolution of 183 rabies virus isolates collected from over 20 countries between 1972 and 2014. We have undertaken a discrete phylogeographic analysis on a subset of 139 samples to infer where and when movements of rabies have occurred. We provide evidence for four genetically distinct clades with separate origins currently circulating in the Middle East and surrounding countries. Introductions of these viruses have been followed by regular and multidirectional trans-boundary movements in some parts of the region, but relative isolation in others. There is evidence for minimal regular incursion of rabies from Central and Eastern Asia. These data support current initiatives for regional collaboration that are essential for rabies elimination.

Environmental sampling for respiratory pathogens in Jeddah airport during the 2013 Hajj season

BACKGROUND

Respiratory tract infections (RTIs) are common during the Hajj season and are caused by a variety of organisms, which can be transmitted via the air or contaminated surfaces. We conducted a study aimed at sampling the environment in the King Abdul Aziz International (KAAI) Airport, Pilgrims City, Jeddah, during Hajj season to detect respiratory pathogens.

METHODS

Active air sampling was conducted using air biosamplers, and swabs were used to sample frequently touched surfaces. A respiratory multiplex array was used to detect bacterial and viral respiratory pathogens.

RESULTS

Of the 58 environmental samples, 8 were positive for at least 1 pathogen. One air sample (1 of 18 samples, 5.5%) tested positive for influenza B virus. Of the 40 surface samples, 7 (17.5%) were positive for pathogens. These were human adenovirus (3 out of 7, 42.8%), human coronavirus OC43/HKU1 (3 out of 7, 42.8%), Haemophilus influenzae (1 out of 7, 14.2%), and Moraxella catarrhalis (1 out of 7, 14.2%). Chair handles were the most commonly contaminated surfaces. The handles of 1 chair were cocontaminated with coronavirus OC43/HKU1 and H influenzae.

CONCLUSION

Respiratory pathogens were detected in the air and on surfaces in the KAAI Airport in Pilgrims City. Larger-scale studies based on our study are warranted to determine the role of the environment in transmission of respiratory pathogens during mass gathering events (eg, Hajj) such that public health preventative measures might be better targeted.

Travel implications of emerging coronaviruses: SARS and MERS-CoV

The emergence of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) and of the Middle East Syndrome Cornavirus (MERS-CoV) caused widespread fear and concern for their potential threat to global health security. There are similarities and differences in the epidemiology and clinical features between these two diseases. The origin of SARS-COV and MERS-CoV is thought to be an animal source with subsequent transmission to humans. The identification of both the intermediate host and the exact route of transmission of MERS-CoV is crucial for the subsequent prevention of the introduction of the virus into the human population. So far MERS-CoV had resulted in a limited travel-associated human cases with no major events related to the Hajj.

Non-pharmaceutical interventions for the prevention of respiratory tract infections during Hajj pilgrimage

Overcrowding during the yearly Hajj mass gatherings is associated with increased risk of spreading infectious diseases, particularly respiratory diseases. Non-pharmaceutical interventions (e.g., hand hygiene, wearing face masks, social distancing) are known to reduce the spread of respiratory viruses from person to person and are therefore recommended to pilgrims by public health agencies. The implementation of effective public health policies and recommendations involves evaluating the adherence to and effectiveness of these measures in the specific context of the Hajj. This review summarizes the evidence related to the effectiveness of non-pharmaceutical interventions in preventing the spread of respiratory infectious diseases during the Hajj. Overall, although hand hygiene compliance is high among pilgrims, face mask use and social distancing remain difficult challenges. Data about the effectiveness of these measures at the Hajj are limited, and results are contradictory, highlighting the need for future large-scale studies.

Prevalence of MERS-CoV nasal carriage and compliance with the Saudi health recommendations among pilgrims attending the 2013 Hajj

Background. Annually, Saudi Arabia is the host of the Hajj mass gathering. We aimed to determine the Middle East respiratory syndrome coronavirus (MERS-CoV) nasal carriage rate among pilgrims performing the 2013 Hajj and to describe the compliance with the Saudi Ministry of Health vaccine recommendations.

Method. Nasopharyngeal samples were collected from 5235 adult pilgrims from 22 countries and screened for MERS-CoV using reverse transcriptase–polymerase chain reaction. Information regarding the participants' age, gender, country of origin, medical conditions, and vaccination history were obtained.

Results. The mean age of the screened population was 51.8 years (range, 18–93 years) with a male/female ratio of 1.17:1. MERS-CoV was not detected in any of the samples tested (3210 pre-Hajj and 2025 post-Hajj screening). According to the vaccination documents, all participants had received meningococcal vaccination and the majority of those from at-risk countries were vaccinated against yellow fever and polio. Only 22% of the pilgrims (17.5% of those ≥65 years and 36.3% of diabetics) had flu vaccination, and 4.4% had pneumococcal vaccination.

Conclusion. There was no evidence of MERS-CoV nasal carriage among Hajj pilgrims. While rates of compulsory vaccinations uptake were high, uptake of pneumococcal and flu seasonal vaccinations were low, including among the high-risk population.