Which hepatitis virus can only infect an individual who has already been infected by hepatitis B virus?

Bartonella henselae is generally transmitted to humans by what means?

Which of the following describes impetigo?

Which virus becomes dormant in dorsal ganglia after infection?

Trichomonas vaginalis consumes other microbes. What effect does this have?

An individual’s first exposure to an antigen capable of eliciting a type I hypersensitivity initially causes which of the following responses?

Which form of Naegleria fowerli causes primary amoebic encephalitis?

Which of the following describes what happens when someone has a reaction to poison ivy?

Which of the following is an infection of the inner lining of the heart?

Which refers to dysuria?