3 years ago

The r-type strain of s. pneumoniae does not cause pneumonia because bacterial cells are g

1 answer:

4 0

The R-Type strain of s. pneumoniae does not cause pneumonia because the bacteria cells do not have a protective coating. When it enters the host, it cannot withstand the attacks of the immune system thus it dies before infection. On the other hand, the S-type strain has a protective coat that allows it to survive in the host, which causes infection.

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