During an outbreak of norovirus gastroenteritis in a nursing home, environmental swabs are collected to identify the source of the infection. Which of the following methods would be MOST appropriate for detecting norovirus in these samples?

A patient develops a severe skin infection after a puncture wound sustained while gardening. Culture of the wound exudate grows a Gram-positive, spore-forming bacillus that is anaerobic and produces a potent neurotoxin causing sustained muscle contraction. The MOST likely organism is:

During an investigation of a foodborne outbreak linked to a church supper, 80 people ate the suspected chicken dish, and 32 subsequently developed gastroenteritis. Among 50 people who did not eat the chicken dish, 5 developed similar symptoms. What is the attack rate among those who ate the chicken dish?

Besides traditional Giemsa-stained thick and thin blood smears, which diagnostic approach is commonly employed as a rapid diagnostic test (RDT) for malaria detection, particularly in resource-limited settings?

The erm gene in Staphylococcus aureus confers resistance to which class(es) of antibiotics via modification of the ribosomal target site?