Mortality rates caused by SARS CoV-2 differ between countries and this difference might be explained by several reasons. Childhood vaccination rate is thought to be one of them. Therefore present study aimed to examine the possible relationship between DTaP (diphtheria, tetanus, pertussis) and measles vaccination rates of Organization for Economic Co-operation and Development (OECD) countries and case fatality rate (CFR) caused by SARS CoV-2.

The mortality rates caused by SARS CoV-2 differ between countries and this difference might be explained by several reasons. Childhood vaccination rate is thought to be one of them. Therefore present study aimed to examine the possible relationship between DTaP (diphtheria, tetanus, pertussis) and measles vaccination rates of Organization for Economic Co-operation and Development (OECD) countries and case fatality rate (CFR) caused by SARS CoV-2.A total of 32 OECD countries, of northern hemisphere, have been included in this study. Statistical analysis performed according to the CFR data of these countries based on SARS CoV-2. The CFR data calculated according to the total mortality count of a specific country for the 3-month period down from the date when first SARS CoV-2 case was observed.

Inclusion Criteria:

• Children vaccinated in OECD countries in northern hemisphere

Exclusion Criteria:

• Non vaccinated children
• Southern hemisphere countries
• non-OECD countries

Children vaccinated in OECD countries in northern hemisphere