final exam protozoan diseases

Question 1

malaria

• what is the causative agent? what are the 5 types?
• what is the specific vector? what gender?
• which type is the worst? why?
• important symptoms? what is a cycle of these symptoms called?
• where does this disease divide asexually?
• what two things can this disease result in?
• what is the infectious form of this disease? feeding form? reproducing form?
• what are they called if the enter RBCs?
• who can easily get malaria?

Answer 1

• plasmodium; vivax, knowlesi, malariae, falciparum, ovale
• anopheles mosquitos; female
• falciparum bc it effects all RBCs and causes them to agglutinate
• flulike, cold phases, hot phases, wet phases; paroxysm
• liver
• anemia and splenic rupture
• sporozoites (infectious form)->merozoites-> trophozoites(feeding stage)-> schizont(reproducing stage)
• gametocytes
• IV drug users

Question 2

trichomonaisis

• causative agent?
• who is mostly asymptomatic?
• important symptoms?

Answer 2

• trichomonas vaginalis
• men
• swollen vagina with frothy discharge, itching and burning

Question 3

african sleeping disease

• causative agents?
• what is the vector?
• important symptoms?

Answer 3

• T brucei rhodesiense: cattle raising areas, FAST death within 6 months
• T brucei gambiense: forested areas, SLOWER gradual sickness
• tsetse fly
• recurrent fever, gradual loss of interest in everything, speech becomes slurred followed by coma and death