Unvaccinated French boy brings measles to Costa Rica for the first time in five years - USA TODAY

1. Unvaccinated French boy brings measles to Costa Rica for the first time in five years  USA TODAY
2. Measles returned to Costa Rica after five years by French family who had not had vaccinations  The Independent
3. Costa Rica Had Been Free of Measles Since 2014. Then Along Came an Unvaccinated French Boy.  Slate
4. Costa Rican measles outbreak traced to unvaccinated French tourists  Boing Boing
5. French boy accused of reintroducing measles to Costa Rica  Euronews English
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