Investigation of Infections, Deaths, and Vaccination Indicators Associated with Covid-19 in the Six World Health Organization Regions

As of July 19, 2023, the Western Pacific region having the highest number of vaccines per 100 people (241.8) and the highest vaccination rate (85.4%), while the African region had the lowest numbers for both (55.0 and 31.5%). A significant positive correlation was found between the number of infections and deaths across the World Health Organization (WHO) regions (r=0.947, p-value=0.001), suggesting that areas with higher infection rates also experienced more deaths. However, no significant associations were discovered between the number of infections or deaths and vaccination indicators. Interestingly, an inverse and significant relationship was established between the number of vaccinations per 100 persons and the death-to-infection ratio (r=-0.769, p-value=0.043), and between the death-to-infection ratio and the percentage of vaccinations in the regions (r=-0.776, p-value=0.040). This indicates that regions with higher vaccination rates tend to have a lower ratio of deaths to infections. The results of this study suggested that achieving complete vaccination coverage could potentially reduce the mortality rate associated with COVID-19 virus infection.

Investigation of Infections, Deaths, and Vaccination Indicators Associated with Covid-19 in the Six World Health Organization Regions Keywords:

COVID-19 , Infection , Vaccination , World health organization (Who)