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Bansal D, Atia H, Al Badr M, Nour M, Abdulmajeed J, Hasan A, Al-Hajri N, Ahmed L, Ibrahim R, Zamel R, Mohamed A, Pattalaparambil H, Daraan F, Chaudhry A, Oraby S, El-Saleh S, El-Shafie SS, Al-Farsi AF, Paul J, Ismail A, Al-Romaihi HE, Al-Thani MH, Doi SAR, Zughaier SM, Cyprian F, Farag E, Farooqui HH. Dynamics of Anti-S IgG Antibodies Titers after the Second Dose of COVID-19 Vaccines in the Manual and Craft Worker Population of Qatar. Vaccines (Basel) 2023; 11:vaccines11030496. [PMID: 36992080 DOI: 10.3390/vaccines11030496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 02/24/2023] Open
Abstract
There is limited seroepidemiological evidence on the magnitude and long-term durability of antibody titers of mRNA and non-mRNA vaccines in the Qatari population. This study was conducted to generate evidence on long-term anti-S IgG antibody titers and their dynamics in individuals who have completed a primary COVID-19 vaccination schedule. A total of 300 male participants who received any of the following vaccines BNT162b2/Comirnaty, mRNA-1273, ChAdOx1-S/Covishield, COVID-19 Vaccine Janssen/Johnson, or BBIBP-CorV or Covaxin were enrolled in our study. All sera samples were tested by chemiluminescent microparticle immunoassay (CMIA) for the quantitative determination of IgG antibodies to SARS-CoV-2, receptor-binding domain (RBD) of the S1 subunit of the spike protein of SARS-CoV-2. Antibodies against SARS-CoV-2 nucleocapsid (SARS-CoV-2 N-protein IgG) were also determined. Kaplan–Meier survival curves were used to compare the time from the last dose of the primary vaccination schedule to the time by which anti-S IgG antibody titers fell into the lowest quartile (range of values collected) for the mRNA and non-mRNA vaccines. Participants vaccinated with mRNA vaccines had higher median anti-S IgG antibody titers. Participants vaccinated with the mRNA-1273 vaccine had the highest median anti-S-antibody level of 13,720.9 AU/mL (IQR 6426.5 to 30,185.6 AU/mL) followed by BNT162b2 (median, 7570.9 AU/mL; IQR, 3757.9 to 16,577.4 AU/mL); while the median anti-S antibody titer for non-mRNA vaccinated participants was 3759.7 AU/mL (IQR, 2059.7–5693.5 AU/mL). The median time to reach the lowest quartile was 3.53 months (IQR, 2.2–4.5 months) and 7.63 months (IQR, 6.3–8.4 months) for the non-mRNA vaccine recipients and Pfizer vaccine recipients, respectively. However, more than 50% of the Moderna vaccine recipients did not reach the lowest quartile by the end of the follow-up period. This evidence on anti-S IgG antibody titers should be considered for informing decisions on the durability of the neutralizing activity and thus protection against infection after the full course of primary vaccination in individuals receiving different type (mRNA verus non-mRNA) vaccines and those with natural infection.
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Affiliation(s)
- Devendra Bansal
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Hassan Atia
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Mashael Al Badr
- National Reference Laboratory, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Mohamed Nour
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Jazeel Abdulmajeed
- Primary Health Care Corporation, Doha P.O. Box 26555, Qatar
- Department of Population Medicine, College of Medicine, Q U Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Amal Hasan
- National Reference Laboratory, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Noora Al-Hajri
- National Reference Laboratory, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Lina Ahmed
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Rumissa Ibrahim
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Reham Zamel
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Almuthana Mohamed
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Hamad Pattalaparambil
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Faisal Daraan
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Adil Chaudhry
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Sahar Oraby
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Sahar El-Saleh
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Sittana S El-Shafie
- National Reference Laboratory, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Affra Faiz Al-Farsi
- Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Jiji Paul
- Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Ahmed Ismail
- Laboratory Section, Medical Commission Department, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Hamad Eid Al-Romaihi
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Mohammed Hamad Al-Thani
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Suhail A R Doi
- Department of Population Medicine, College of Medicine, Q U Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Susu M Zughaier
- Department of Basic Medical Sciences, College of Medicine, Q U Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Farhan Cyprian
- Department of Basic Medical Sciences, College of Medicine, Q U Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Elmobashar Farag
- Health Protection and Communicable Disease Control, Ministry of Public Health, Doha P.O. Box 42, Qatar
| | - Habib Hasan Farooqui
- Department of Population Medicine, College of Medicine, Q U Health, Qatar University, Doha P.O. Box 2713, Qatar
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Mahfoud ZR, Cheema S, Alrouh H, Al-Thani MH, Al-Thani AAM, Mamtani R. Seat belt and mobile phone use among vehicle drivers in the city of Doha, Qatar: an observational study. BMC Public Health 2015; 15:937. [PMID: 26392362 PMCID: PMC4578805 DOI: 10.1186/s12889-015-2283-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/15/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Qatar traffic injuries and fatalities are of serious concern. Mobile phone use whilst driving has been associated with increased risk of vehicular collisions and injuries. Seat belt use has been demonstrated to save lives and reduce the severity of road traffic injuries. Whereas previously published studies may have looked at all front passengers, this study aims to obtain reliable estimates of the prevalence of seat belt and mobile phone use among vehicle drivers in the city of Doha, Qatar. Additionally, we aim to investigate the association of these behaviors with other variables namely gender, time of the day and type of vehicle. METHODS An observational study on 2,011 vehicles was conducted in 2013. Data were collected at ten sites within Doha city over a two-week period. Two trained observers surveyed each car and recorded observations on a data collection form adapted from a form used in a 2012 Oklahoma observational study. Associations were assessed using the Chi-squared test or Fisher's exact test. A p-value of .05 or less was considered statistically significant. RESULTS Overall, 1,463 (72.7 %) drivers were found using a seat belt (95 % CI: 70.8-74.7 %) and 150 (7.5 %) their mobile phones (95 % CI: 6.3-8.6 %) during the observation period. Mobile phone use was significantly associated with not using a seat belt and driving a sport utility vehicle. Significantly lower rates of seat belt use were observed in the early morning and late afternoon. No gender differences were observed. DISCUSSION Seatbelt use in Doha was found to be similar to countries in the region but lower than those in western countries. Also, studies from other high-income locations, reported lower rates of mobile phone use while driving than in Doha. CONCLUSIONS Despite road traffic crashes being one of the leading causes of death in Qatar, three out of 10 drivers in Doha, Qatar, do not use a seat belt and about one in 12 use a mobile phone while driving. More efforts, in the form of awareness campaigns and increased law enforcement, are needed to improve compliance with laws requiring seat belt use and prohibiting mobile phone use while driving.
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Affiliation(s)
- Ziyad R Mahfoud
- Division of Global and Public Health, Weill Cornell Medical College in Qatar. Qatar Foundation, Education City, P.O. Box: 24144, Doha, Qatar. .,Department of Healthcare Policy and Research, Weill Cornell Medical College, 402 East 67th Street, Box 74, New York, NY, 10065, USA.
| | - Sohaila Cheema
- Division of Global and Public Health, Weill Cornell Medical College in Qatar. Qatar Foundation, Education City, P.O. Box: 24144, Doha, Qatar.
| | - Hekmat Alrouh
- Division of Global and Public Health, Weill Cornell Medical College in Qatar. Qatar Foundation, Education City, P.O. Box: 24144, Doha, Qatar.
| | | | | | - Ravinder Mamtani
- Division of Global and Public Health, Weill Cornell Medical College in Qatar. Qatar Foundation, Education City, P.O. Box: 24144, Doha, Qatar.
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