Talk:2019 Samoa measles outbreak

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In trying to make sense of the numbers on this page and they don't seem to add up. According to populationpyramid.net the population of Samoa in 2017 was 195457, in 2018 196128. So barring people immigrating or leaving the country the delta is 671 new people. If one assumes none were vaccinated and nobody becomes "devaccinated" then in one year the addition of 671 unvaccinated people can't dilute the still vaccinated population of 195457 x 0.74 = 144638 down to 0.31-0.34 vaccination rate. Nearly 80,000 vaccinated people would have had to have left or died. One or more of the numbers in this article has to be way off. Another possibility is that "vaccination rate" isn't referring to the population as a whole, but to the infant cohort in an age group. WHO in reference 23 seems to be only referring to 12-23 month children in their vaccination rate numbers. If that is the case in the Wikipedia text, it should probably be made more clear. Something like: "decreased vaccination rates, from 74% of 12-23 mo infants in 2017 to 31–34% in 2018, even though nearby islands had rates near 99% in the total population." Jcunningham63 (talk) 20:41, 16 July 2020 (UTC)[reply]

— Preceding unsigned comment added by Jcunningham63 (talkcontribs) 16:36, 16 July 2020 (UTC)[reply] 
Vaccination rates are calculated yearly. Cheers. — Preceding unsigned comment added by 70.79.138.139 (talk) 18:49, 23 February 2021 (UTC)[reply]