Correlation between polio immunization coverage and overall morbidity and mortality for COVID-19: an epidemiological study

Afify, Marwa Adel; Alqahtani, Rakan M.; Alzamil, Mohammed Abdulrahman Mohammed; Khorshid, Faten Abdulrahman; Almarshedy, Sumayyah Mohammad; Alattas, Sana Ghazi; Alrawaf, Talal Nabeel; Bin-Jumah, May; Abdel-Daim, Mohamed M.; Almohideb, Mohammad

Correlation between polio immunization coverage and overall morbidity and mortality for COVID-19: an epidemiological study

2021

We conducted the current analysis to determine the potential role of polio vaccination in the context of the spread of COVID-19. Data were extracted from the World Health Organization’s (WHO) Global Health Observatory data repository regarding the polio immunization coverage estimates and correlated to the overall morbidity and mortality for COVID-19 among different countries. Data were analyzed using R software version 4.0.2. Mean and standard deviation were used to represent continuous variables while we used frequencies and percentages to represent categorical variables. The Kruskal-Wallis H test was used for continuous variables since they were not normally distributed. Moreover, the Spearman rank correlation coefficient (rho) was used to determine the relationship between different variables. There was a significantly positive correlation between the vaccine coverage (%) and both of total cases per one million populations (rho = 0.37; p-value < 0.001) and deaths per one million populations (rho = 0.30; p-value < 0.001). Moreover, there was a significant correlation between different income groups and each of vaccine coverage (%) (rho = 0.71; p-value < 0.001), total cases per one million populations (rho = 0.50; p-value < 0.001), and deaths per one million populations (rho = 0.39; p-value < 0.001). All claims regarding the possible protective effect of Polio vaccination do not have any support when analyzing the related data. Polio vaccination efforts should be limited to eradicate the disease from endemic countries; however, there is no evidence to support the immunization with live-attenuated vaccines for the protection against COVID-19.

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