By Michael Gwarisa Data from a new study that sought to examine vaccine effectiveness in light of circulating Coronavirus variants following vaccination, has shown that the effectiveness of vaccines that were widely administered in Zimbabwe between 2021 and 2022 has weakened against emerging COVID-19 variants. The study dubbed COVID-19 vaccine effectiveness and SARS CoV-2 variants in Zimbabwe: Test Negative Case-Control study, Genetic sequencing and Serology (ZIMCoVVAR) was a test-negative case-control study to evaluate the effectiveness of inactivated vaccines and was conducted from November 2022 to October 2023. The study did…
Read MoreZimbabwe Advised To Adopt Annual Covid-19 Vaccination That Covers New Strains For High Risk Groups Amid Waning Vaccine Effectiveness
