More Frequent Cases of Severe C

Question

More frequent cases of severe C. difficile infection since 2003 is attributed to
A) the emergence of more virulent and toxigenic strains.
B) the increased use of probiotics.
C) problems with hospital hygiene and increased transmission.
D) dietary changes in the human population.

Accepted Answer

Studies have shown that the emergence of more virulent and toxigenic strains of C. difficile is the main factor behind the increased frequency of severe infection since 2003. Other factors such as hospital hygiene and transmission can also contribute to the spread of the infection, but the virulence of the bacteria has been identified as the main cause. There is no evidence to suggest that dietary changes or probiotics have had a significant impact on the increase in severe C. difficile infection.