Author: Yutaka Akiyama; Takashi Ishida
Title: Relationship between COVID-19 death toll doubling time and national BCG vaccination policy Document date: 2020_4_17
ID: 4m9ngo8g_3
Snippet: Next, we surveyed the national BCG vaccination policies of each country (sources: BCG Atlas, 4 WHO-UNICEF report, 5 and other 12 papers). The 47 countries were divided into two groups based on whether the majority of the population between the ages of 0 and 29 was vaccinated ("BCG") or not ("non-BCG"). BCG vaccination records are reliable only for the last 30 years for several countries. We also investigated the dependency of the BCG strains. Amo.....
Document: Next, we surveyed the national BCG vaccination policies of each country (sources: BCG Atlas, 4 WHO-UNICEF report, 5 and other 12 papers). The 47 countries were divided into two groups based on whether the majority of the population between the ages of 0 and 29 was vaccinated ("BCG") or not ("non-BCG"). BCG vaccination records are reliable only for the last 30 years for several countries. We also investigated the dependency of the BCG strains. Among the 32 "BCG" countries, the median DT of the four countries using "Tokyo 172-1" strain (Japan, Iraq, Malaysia, and Pakistan) was 6.8, and that of the other 28 vaccinated countries was 3.8. Their distributions were also significantly different at the significance level of 0.05 ( 0.024).
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