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The role of herd immunity in control of measles.
Measles vaccine cannot give high sero-conversion rates in developing countries. The high birth rates characteristic of these countries lead to infection at a very early age, thus making it difficult to vaccinate before exposure to the disease. Nevertheless, if given early in life, the vaccine can re...
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| Formato: | Texto |
| Lenguaje: | English |
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Yale Journal of Biology and Medicine
1982
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2596463/ https://www.ncbi.nlm.nih.gov/pubmed/7180027 |