A patient’s illness is caused by a bacterial toxin rather than direct invasion of tissue. Which disease best matches this description?

RNA viruses frequently evade immunity because they generally have:

A sputum sample contains bacteria with waxy cell walls that do not stain well with a standard Gram stain. Which organism is most likely?

A bacterium isolated from a wound produces coagulase, allowing it to clot plasma. Which organism is being identified?

A patient contracts an infectious disease after being bitten by an insect vector. Which disease from the course material is most strongly associated with this route?

A child develops scarlet fever following a streptococcal infection. What is the primary cause of the rash?

A virus enters a host cell and replicates its genome in the nucleus. What type of virus is this most likely?

An immunocompromised patient develops a fungal infection from normal microbiota. Which organism is most likely?

A hospitalized patient with weakened immunity develops an overgrowth of yeast from normal microbiota. Which infection is most likely?

A patient bitten by a rabid animal develops neurological symptoms. What system is most affected?