Science, asked by Prithiga, 1 year ago

why children from many parts of world are immune with hepatitis a and small pox

Answers

Answered by gangsterrebel
2

Over the last 40 years, the use of smallpox, measles, diphtheria, tetanus, pertussis ... the World Health Assembly recommended hepatitis B vaccination for all infants. ... As most vaccine-preventable diseases are underreported in many countries, ... Most children born to immune mothers are protected from the virus for the first ...

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