Los Angeles #Vaccination Rates 2014
▻http://www.hollywoodreporter.com/features/los-angeles-vaccination-rates
Épidémie de coqueluche à Los Angeles alors que les taux de vaccination ont fortement baissé dans certains quartiers plutôt aisés.
Underlying the revision of this schedule is a concept known as herd immunity, in which a community is protected against contagion if enough people have been vaccinated. The CDC indicates that herd immunity begins to be seriously compromised for whooping cough and measles when 6 percent or more of the population isn’t properly immunized. And that’s exactly what’s happening on the Westside.