tetano
Editor, Senior Moderator
PLoS One
. 2020 Nov 9;15(11):e0242124.
doi: 10.1371/journal.pone.0242124. eCollection 2020.
Prevalence of SARS-CoV-2 among high-risk populations in Lom? (Togo) in 2020
Wemboo Afiwa Halatoko[SUP] 1 [/SUP], Yao Rodion Konu[SUP] 2 3 [/SUP], Fifonsi Adjidossi Gbeasor-Komlanvi[SUP] 2 3 [/SUP], Arnold Junior Sadio[SUP] 2 3 [/SUP], Martin Kouame Tchankoni[SUP] 3 [/SUP], Koffi Segbeaya Komlanvi[SUP] 3 [/SUP], Mounerou Salou[SUP] 4 5 6 [/SUP], Ameyo Monique Dorkenoo[SUP] 5 7 [/SUP], Issaka Maman[SUP] 1 [/SUP], Am?t?p? Agbobli[SUP] 5 [/SUP], Majest? Ihou Wateba[SUP] 5 6 [/SUP], Komi S?raphin Adjoh[SUP] 5 6 [/SUP], Edem Goeh-Akue[SUP] 5 6 [/SUP], Yem-Bla Kao[SUP] 6 [/SUP], Innocent Kpeto[SUP] 6 [/SUP], Paul Pana[SUP] 6 [/SUP], Rebecca Kinde-Sossou[SUP] 7 [/SUP], Agbeko Tamekloe[SUP] 7 [/SUP], Jos?e Nayo-Ap?tsianyi[SUP] 7 [/SUP], Simon-Pierre Hamadi Assane[SUP] 7 [/SUP], Mireille Prine-David[SUP] 4 5 [/SUP], Sossinou Marcel Awoussi[SUP] 7 8 [/SUP], Mohaman Djibril[SUP] 5 8 [/SUP], Moustafa Mijiyawa[SUP] 5 7 [/SUP], Anoumou Claver Dagnra[SUP] 4 5 6 7 [/SUP], Didier Koumavi Ekouevi[SUP] 2 3 6 9 [/SUP]
Affiliations
Abstract
Background: In December 2019, the COVID-19 outbreak began in China and quickly spread throughout the world and was reclassified as a pandemic in March 2020. The first case of COVID-19 was declared in Togo on March 5. Two months later, few data were available to describe the circulation of the new coronavirus in the country.
Objective: This survey aimed to estimate the prevalence of SARS-CoV-2 in high-risk populations in Lom?.
Materials and methods: From April 23, 2020, to May 8, 2020, we recruited a sample of participants from five sectors: health care, air transport, police, road transport and informal. We collected oropharyngeal swabs for direct detection through real-time reverse transcription polymerase chain reaction (rRT-PCR) and blood for antibody detection by serological tests. The overall prevalence (current and past) of infection was defined by positivity for both tests.
Results: A total of 955 participants with a median age of 36 (IQR 32-43) were included, and 71.6% (n = 684) were men. Approximately 22.1% (n = 212) were from the air transport sector, 20.5% (n = 196) were from the police sector, and 38.7% (n = 370) were from the health sector. Seven participants (0.7%, 95% CI: 0.3-1.6%) had a positive rRT-PCR test result at the time of recruitment, and nine (0.9%, 95% CI: 0.4-1.8%) were seropositive for IgM or IgG against SARS-CoV-2. We found an overall prevalence of 1.6% (n = 15), 95% CI: 0.9-2.6%.
Conclusion: The prevalence of SARS-CoV-2 infection among high-risk populations in Lom? was relatively low and could be explained by the various measures taken by the Togolese government. Therefore, we recommend targeted screening.
. 2020 Nov 9;15(11):e0242124.
doi: 10.1371/journal.pone.0242124. eCollection 2020.
Prevalence of SARS-CoV-2 among high-risk populations in Lom? (Togo) in 2020
Wemboo Afiwa Halatoko[SUP] 1 [/SUP], Yao Rodion Konu[SUP] 2 3 [/SUP], Fifonsi Adjidossi Gbeasor-Komlanvi[SUP] 2 3 [/SUP], Arnold Junior Sadio[SUP] 2 3 [/SUP], Martin Kouame Tchankoni[SUP] 3 [/SUP], Koffi Segbeaya Komlanvi[SUP] 3 [/SUP], Mounerou Salou[SUP] 4 5 6 [/SUP], Ameyo Monique Dorkenoo[SUP] 5 7 [/SUP], Issaka Maman[SUP] 1 [/SUP], Am?t?p? Agbobli[SUP] 5 [/SUP], Majest? Ihou Wateba[SUP] 5 6 [/SUP], Komi S?raphin Adjoh[SUP] 5 6 [/SUP], Edem Goeh-Akue[SUP] 5 6 [/SUP], Yem-Bla Kao[SUP] 6 [/SUP], Innocent Kpeto[SUP] 6 [/SUP], Paul Pana[SUP] 6 [/SUP], Rebecca Kinde-Sossou[SUP] 7 [/SUP], Agbeko Tamekloe[SUP] 7 [/SUP], Jos?e Nayo-Ap?tsianyi[SUP] 7 [/SUP], Simon-Pierre Hamadi Assane[SUP] 7 [/SUP], Mireille Prine-David[SUP] 4 5 [/SUP], Sossinou Marcel Awoussi[SUP] 7 8 [/SUP], Mohaman Djibril[SUP] 5 8 [/SUP], Moustafa Mijiyawa[SUP] 5 7 [/SUP], Anoumou Claver Dagnra[SUP] 4 5 6 7 [/SUP], Didier Koumavi Ekouevi[SUP] 2 3 6 9 [/SUP]
Affiliations
- PMID: 33166369
- DOI: 10.1371/journal.pone.0242124
Abstract
Background: In December 2019, the COVID-19 outbreak began in China and quickly spread throughout the world and was reclassified as a pandemic in March 2020. The first case of COVID-19 was declared in Togo on March 5. Two months later, few data were available to describe the circulation of the new coronavirus in the country.
Objective: This survey aimed to estimate the prevalence of SARS-CoV-2 in high-risk populations in Lom?.
Materials and methods: From April 23, 2020, to May 8, 2020, we recruited a sample of participants from five sectors: health care, air transport, police, road transport and informal. We collected oropharyngeal swabs for direct detection through real-time reverse transcription polymerase chain reaction (rRT-PCR) and blood for antibody detection by serological tests. The overall prevalence (current and past) of infection was defined by positivity for both tests.
Results: A total of 955 participants with a median age of 36 (IQR 32-43) were included, and 71.6% (n = 684) were men. Approximately 22.1% (n = 212) were from the air transport sector, 20.5% (n = 196) were from the police sector, and 38.7% (n = 370) were from the health sector. Seven participants (0.7%, 95% CI: 0.3-1.6%) had a positive rRT-PCR test result at the time of recruitment, and nine (0.9%, 95% CI: 0.4-1.8%) were seropositive for IgM or IgG against SARS-CoV-2. We found an overall prevalence of 1.6% (n = 15), 95% CI: 0.9-2.6%.
Conclusion: The prevalence of SARS-CoV-2 infection among high-risk populations in Lom? was relatively low and could be explained by the various measures taken by the Togolese government. Therefore, we recommend targeted screening.