Biology, asked by akjha08062003, 4 months ago

यदि किसी व्यक्ति को एक बार चेचक हो जाए तो दोबारा चेचक रोग नहीं होता है क्यों​

Answers

Answered by ramjanamtiwari0477
0

Answer:

No it can be happened it can be cause again

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