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Health, 07.04.2020 22:01 myamiller558
Vaccination has proven to be a highly effective weapon against certain diseases. –, which at its peak in the 1940s and 1950s infected – in the United States each year, has been – eradicated worldwide through vaccination. Newly developed vaccines against diseases such as – hold great promise as a public health tool in Africa.
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Vaccination has proven to be a highly effective weapon against certain diseases. –, which at its pea...
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