Question

Question 21 (1 point) Which of the following is/are true for diseases of the nervous system (Select all that apply): Viral meningitis: A gram stain can differentiate between the 4 most common causes Hansen@s disease: Has a long incubation period (years) Rabies: You can be vaccinated after exposure and be protected Amebic Meningoencephalopathy: Drugs have limited success and must be used very early in infection Transmissible Spongiform Encephalopathies: There is no cure Question 22 (1 point) Which of the following is/are true for tetanus (Select all that apply): Etiological agent is Clostridium tetani The etiological agent produces endospores The etiological agent is a gram positive, obligate anaerobe Neurotoxin blocks release of neurotransmitter causing flaccid paralysis Toxin stays at site of infection, bacteria travels through PNS and CNS

Answer 1

21) Viral meningitis an inflammation of brain lining and spinal cord. Rabies: viral disease that leads to brain inflammation.
Amoebic meningoencephalitis: Brain infection and their membranes covering brain caused by ameoba, Naegleria fowleri. Transmissible spongiform encephalopathies: Disease associated with prions a misfolded proteins.  

22) Tetanus: caused by Clostridium tetani. They produce endospores. It is Gram positive,  obligate anaerobic bacillus bacterium.

23) Malaria, african viral hemorrhagic fevers, bubonic plague, Anthrax

24) First phase, caused by Borrelia burgdorferi, prevention with insect repellents like DEET, most reported U.S vector-borne disease.