Weekly Health Quiz: Parechovirus, Child Vaccination and Dental Health
An analysis of the W.H.O. and UNICEF, the United Nations agency that immunizes half of the world's children, found that routine immunization rates have dropped for which of the following killer diseases between 2019 and 2021?
![Weekly Health Quiz: Parechovirus, Child Vaccination and Dental Health](https://static01.nyt.com/images/2021/04/11/well/00healthquiz-art/11Well-HealthQuiz-icon-facebookJumbo-v3.jpg)
An analysis of the W.H.O. and UNICEF, the United Nations agency that immunizes half of the world's children, found that routine immunization rates have dropped for which of the following killer diseases between 2019 and 2021?
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