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Sars-Cov-2 Seroprevalence by Combining Computational and Probabilistic Approaches

Davide Wejse

On March 25, 2020, the first coronavirus case in Guinea-Bissau was reported. A limited testing capacity has been used to continuously monitor the outbreak. By November 1, 2021, 103,820 persons had had PCR testing, with 6150 of them testing positive with SARS-CoV-2 and 143 of them passing away. 2 18% SARS-CoV-2 Seroprevalence was discovered in a recent Bissau study of healthcare professionals. 3 A meta-analysis revealed a combined Seroprevalence of 22% for SARS-CoV-2 in Africa. 4 The AstraZeneca vaccine was first administered in Guinea-Bissau on April 2, with a focus on at-risk populations such those who are HIV-positive. The three vaccinations were all provided after the addition of Sino pharm and Johnson vaccines to the schedule on August 25. HIV prevalence in Guinea-Bissau is significant, at 3% nationwide.