Soumah, A.; /Diallo, Mamadou Saliou Kalifa; /Guichet, Emilande; Maman, D.; Thaurignac, G.; Keita, A. K.; /Bouillin, Julie; Diallo, H.; /Pelloquin, Raphael; /Ayouba, Ahidjo; Kpamou, C.; /Peeters, Martine; Delaporte, E.; /Etard, Jean-François; Toure, A.
Descripción:
We conducted 3 successive seroprevalence surveys, 3 months apart, using multistage cluster sampling to measure the extent and dynamics of the severe acute respiratory syndrome coronavirus 2 epidemic in Conakry, the capital city of Guinea. Seroprevalence increased from 17.3% (95% CI, 12.4%-23.8%) in December 2020 during the first survey (S1) to 28.9% (95% CI, 25.6%-32.4%) in March/April 2021 (S2), then to 42.4% (95% CI, 39.5%-45.3%) in June 2021 (S3). This significant overall trend of increasing seroprevalence (P < .0001) was also significant in every age class, illustrating a sustained transmission within the whole community. These data may contribute to defining cost-effective response strategies.