Thick Polysaccharide Capsules are Important Virulence Assets For

Question

Thick polysaccharide capsules are important virulence assets for
A) Escherichia coli and Vibrio cholera.
B) Clostridium tetani and Bacillus anthracis.
C) Neisseria gonorrhoeae and Streptococcus pneumonia.
D) Salmonella spp. and Staphylococcus aureus.
E) Helicobacter pylori and Enterobacter cloacae.

Accepted Answer

Both Neisseria gonorrhoeae and Streptococcus pneumonia have thick polysaccharide capsules that contribute to their virulence. Escherichia coli and Vibrio cholera have thinner capsules or no capsules at all, Clostridium tetani and Bacillus anthracis have spores as their main virulence factor, Salmonella spp. have a thinner capsule, and Staphylococcus aureus has a protein capsule. Helicobacter pylori and Enterobacter cloacae do not have capsules as their main virulence factor.