1 Zanzibar Office, Tanzania Meteorlogical Authority (TMA), Zanzibar, Tanzania. 2 Department of Natural Science, State University of Zanzibar (SUZA), Zanzibar, Tanzania. Figure 1. Map of study area ...
Sample size calculation is a crucial step in any research or observation study. It helps to determine the number of subjects required to achieve desired accuracy, power, and precision in our results.
The COVID-19 vaccine clinical trials were designed to study the vaccine’s safety and efficacy in preventing symptomatic disease, not transmission. But online publications now misleadingly present the ...
More than 190 million people have developed COVID-19 since late 2019, according to the World Health Organization (WHO). Many other people have likely had the disease but never received a confirmed ...
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