A researcher is studying two strains of the same bacterial species (A & B). Strain A causes a mild respiratory illness that typically resolves without treatment. Strain B causes a severe respiratory disease requiring hospitalisation. Select the correct statement:

Question

A researcher is studying two strains of the same bacterial species (A & B). Strain A causes a mild respiratory illness that typically resolves without treatment. Strain B causes a severe respiratory disease requiring hospitalisation.  Select the correct statement:

Answer

Strain A is non-pathogenic because it only causes mild illness

Answer

Strains A & B have the same virulence because they belong to the same species

Answer

Strain B has greater virulence because it causes more severe disease

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A researcher is studying two strains of the same bacterial species (A & B). Stra...

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