Seroprevalence of SARS-CoV-2 Neutralizing Antibodies among Blood Donors in Ho Chi Minh City, Vietnam, August-November 2020.

Autor:	Nguyen HHH; Training Center, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam.; School of Medicine, Vietnam National University, Ho Chi Minh City, Vietnam.; Viet-Anh Department, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam., Nguyen QH; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Truong DTT; Department for Disease Control and Prevention, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Dao MH; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Le TN; Department for Disease Control and Prevention, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Nguyen HT; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Nguyen AH; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Nguyen TV; Department for Disease Control and Prevention, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Hoang DTN, Hoang LK; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Tran TT; Blood Donation Centre of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Cao TM; Microbiology and Immunology Department, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Luong QC; Department for Disease Control and Prevention, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Phan LT; Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Huynh LTK, Nguyen TV; Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam., Pham QD; Training Center, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam.; Planning Division, Pasteur Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam.
Jazyk:	angličtina
Zdroj:	The American journal of tropical medicine and hygiene [Am J Trop Med Hyg] 2022 Jan 26; Vol. 106 (3), pp. 891-895. Date of Electronic Publication: 2022 Jan 26.
DOI:	10.4269/ajtmh.21-0259
Abstrakt:	Relatively little is known about the seroprevalence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG antibodies and COVID-19-related behaviors in the general population in Vietnam, where the first case of COVID-19 was detected on January 22, 2020. We surveyed a group of 885 blood donors at community blood donation sessions in Ho Chi Minh City from August 27 to November 7, 2020. Blood was collected to test for SARS-CoV-2 IgG antibodies using the plaque reduction neutralization test. We adjusted the seroprevalence by weight for ages 18 to 59 years old obtained from the 2019 population census. The weighted seroprevalence estimate for SARS-CoV-2 neutralizing IgG antibodies was 0.20% (95% CI, 0.05-0.81). Reports of usually or always using a mask in public places were observed at high levels of 28.6% and 67.5%, respectively. The percentages of usually or always washing hands with soap or disinfecting with hand sanitizer after touching items in public places were 48.0% and 37.6%, respectively. Although our findings suggest undocumented exposure to the virus, the seroprevalence of SARS-CoV-2 IgG antibodies among blood donors was low in this city.
Databáze:	MEDLINE
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