Exam 26: Nervous System Infections

You are reviewing for your nursing school entry exam with your study group. Each person in the group agrees to cover one disease. You select toxoplasmosis for your presentation. Toxoplasmosis can be a serious problem for those who are immunosuppressed, as well as for fetuses. Even in healthy people, the immune system may not clear the organism, resulting in a latent infection that can reactivate when immunity declines. -Please identify the correct sequence of events in the pathogenesis of toxoplasmosis. 1) Each cyst contains large numbers of bradyzoites, a smaller form of T. gondii which persists in a latent infection. 2) As host immunity develops, a tough, fibrous capsule forms around infected host cells, forming a tissue cyst. 3) Within the small intestinal cells, sporozoites develop rapidly into tachyzoites which spread systemically. 4) T. gondii enters the host when either mature oocysts containing two sporocysts are eaten. 5) Sporozoites emerge from each of the sporocysts, and invade the cells of the small intestine.

Streptococcus pneumoniae and Haemophilus influenzae are frequently part of the normal microbiota of the nasal passages and throat. 

The more severe form of African sleeping sickness is called the

The only known human pathogen that preferentially attacks the peripheral nerves is

You are reviewing for your nursing school entry exam with your study group. Each person in the group agrees to cover one disease. You select toxoplasmosis for your presentation. Toxoplasmosis can be a serious problem for those who are immunosuppressed, as well as for fetuses. Even in healthy people, the immune system may not clear the organism, resulting in a latent infection that can reactivate when immunity declines. -Prevention of toxoplasmosis involves

Please select the True statement regarding Haemophilus influenzae.

You are reviewing for your nursing school entry exam with your study group. Each person in the group agrees to cover one disease. You select toxoplasmosis for your presentation. Toxoplasmosis can be a serious problem for those who are immunosuppressed, as well as for fetuses. Even in healthy people, the immune system may not clear the organism, resulting in a latent infection that can reactivate when immunity declines. -Immunosuppressed patients who test positive for antibody to T. gondii always have an active infection.

Central nervous system (CNS) diseases caused by fungus may occur in

The nervous system typically

The incubation period of rabies is partially determined by

Stained smears of the surface of the eye might be useful in diagnosing

Identification of the various strains of N. meningitidis is through

An infection of the membranes covering the brain is called

Why is PPSV23 not an effective vaccine for protecting children against pneumococcal meningitis?

Why would the Sabin oral polio vaccine need to be eliminated after eradication of the polio virus?