Pan-Enterovirus Characterization Reveals Cryptic Circulation of Clinically Relevant Subtypes in Arizona Wastewater

Background

Most seasonally circulating enteroviruses result in asymptomatic or mildly symptomatic infections. In rare cases, however, infection with some subtypes can result in paralysis or death. Of the 300 subtypes known, only poliovirus is reportable, limiting our understanding of the distribution of other enteroviruses that can cause clinical disease.

Objective

The overarching objectives of this study were to: 1) describe the distribution of enteroviruses in Arizona during the late summer and fall of 2022, the time of year when they are thought to be most abundant, and 2) demonstrate the utility of viral pan-assay approaches for semi-agnostic discovery that can be followed up by more targeted assays and phylogenomics.

Methods

This study utilizes pooled nasal samples collected from school-aged children and long-term care facility residents, and wastewater from multiple locations in Arizona during July-October of 2022. We used PCR to amplify and sequence a region common to all enteroviruses, followed by species-level bioinformatic characterization using the QIIME 2 platform. For Enterovirus-D68 (EV-D68), detection was carried out using RT-qPCR, followed by confirmation using near-complete whole EV-D68 genome sequencing using a newly designed tiled amplicon approach.

Results

In the late summer and early fall of 2022, multiple enterovirus species were identified in Arizona wastewater, with Coxsackievirus A6, EV-D68, and Coxsackievirus A19 composing 86% of the characterized reads sequenced. While EV-D68 was not identified in pooled human nasal samples, and the only reported acute flaccid myelitis case in Arizona did not test positive for the virus, an in-depth analysis of EV-D68 in wastewater revealed that the virus was circulating from August through mid-October. A phylogenetic analysis on this relatively limited dataset revealed just a few importations into the state, with a single clade indicating local circulation.

Significance

This study further supports the utility of wastewater-based epidemiology to identify potential public health threats. Our further investigations into EV-D68 shows how these data might help inform healthcare diagnoses for children presenting with concerning neurological symptoms.

Methicillin-Resistant Staphylococcus Aureus Nasal Carriers among Laboratory Technical Staff of Tertiary Hospital in Eastern Nepal

Background Methicillin-resistant Staphylococcus aureus (MRSA) has been the leading cause of nosocomial and community infections worldwide. In particular, healthcare workers are at constant risk to develop MRSA carriage. There is a paucity of data regarding the epidemiology of MRSA in laboratory workers who are constantly in contact with these pathogens in almost every hospital. Objective This study was undertaken to identify the burden of MRSA nasal carriers and the antibiotic susceptibility pattern of the isolates among laboratory technical staff. Method Sterile nasal swabs were taken from 50 laboratory technical staff working in the Central and Emergency laboratory of BP Koirala Institute of Health Sciences (BPKIHS). Standard procedures were followed for isolation, identification and antibiotic sensitivity testing. Antibiotic susceptibility tests were performed using disc diffusion and growth on Oxacillin screen agar based on Clinical and Laboratory Standards Institute (CLSI) guidelines. Result Out of 50 isolates of Staphylococcus aureus, 44 (88%) were Methicillin-sensitive (MSSA) while six (12%) were Methicillin-resistant (MRSA). All 50 isolates of S. aureus were found resistant to Penicillin while all were found sensitive to Teicoplanin, Linezolid, and Levofloxacin. Only five (10%) were sensitive to Erythromycin while 49 (98%) were sensitive to both Amikacin and Gentamicin. However, none of the MRSA isolates were found sensitive to all tested antimicrobial agents. Conclusion This repertoire portrays the emergence of MRSA in laboratory workers which clearly indicates the necessity of complying with the sanitary and antibacterial guidelines and adhering to the rational use of antibiotics to prevent nosocomial infections.

Understanding how women's groups improve maternal and newborn health in Makwanpur, Nepal: a qualitative study

Women's groups, working through participatory learning and action, can improve maternal and newborn survival. We describe how they stimulated change in rural Nepal and the factors influencing their effectiveness. We collected data from 19 women's group members, 2 group facilitators, 16 health volunteers, 2 community leaders, 21 local men, and 23 women not attending the women's groups, through semi-structured interviews, group interviews, focus group discussions and unstructured observation of groups. Participants took photographs of their locality for discussion in focus groups using photoelicitation methods. Framework analysis procedures were used, and data fed back to respondents. When group members were compared with 11 184 women who had recently delivered, we found that they were of similar socioeconomic status, despite the context of poverty, and caste inequalities. Four mechanisms explain the women's group impact on health outcomes: the groups learned about health, developed confidence, disseminated information in their communities, and built community capacity to take action. Women's groups enable the development of a broader understanding of health problems, and build community capacity to bring health and development benefit.

Stimulating policy debate on blood transfusion services through the work of an emergency obstetric care project in Nepal

PURPOSE

To improve the quality and accessibility of emergency obstetric care (EmOC) at district level.

METHODS

As the availability of safe and reliable blood transfusion services is a critical component of EmOC, financial and management support was provided to the blood transfusion service centers in the 3 project's Phase 1 districts.

EVALUATION

An evaluation after 3 years showed that, with modest financial outlays and the development of supportive district level partnerships, substantial improvements in quality and management of services had been achieved. The evaluation also identified limitations imposed by lack of legal frameworks and central support; although the Nepal Red Cross Society has a government mandate to supply the national blood needs, the operating procedures and guidelines have no legal base. The evaluation report was widely circulated, and the findings used in national policy discussions.

RESULTS

Following this a task force was commissioned to develop a legal policy framework to ensure standardized quality blood services with defined management and monitoring roles and responsibilities.

Effect of Climate Change on Rice Production: A Case of Six VDCs in Jumla District

Rice (Oryza sativa L.) is a staple crop of Nepal and is directly associated with ample water and minimum fluctuation of temperature that could affect on its production. Jumla is the unique place where rice is cultivated in the highest altitude (3000 m) in the world. To find out changes in rice production due to climatic effect, six VDCs of Jumla were chosen for the study. Household survey, participatory rapid appraisal, farmers’ group discussions and desk review were used for collecting data. Rice varieties Chandannath-1 andChandannath-3 were disseminated by the formal seed system with the aim of increasing rice productivity. Despite the replacement of local varieties by improved ones the production trend seems to be stagnant. One of the factors on stagnant of rice production in Jumla is due to the lack of desirable variety with genetic traits of early maturity, less nutrient requirement compared to Jumli Marshi to cope up with the climate congruently supporting to cultural practices regarding the unique rice production systems of Jumla. Key words: climate change; rice production; highest altitude; seed DOI: 10.3126/njst.v11i0.4124Nepal Journal of Science and Technology 11 (2010) 57-62