A. Indicate recent infection B. Penetrate placental barrier
C. Have the largest molecular weight
D. Are associated with anaphylactic reactions
E. Are the main factor of antiviral protection
9. A patient has been diagnosed with ARVI. Blood serum contains immunoglobulin M. What is the stage of infection in this case?
A. Acute B. Prodromal C. Incubation
D. Reconvalescence E. Carriage
10. As an example of specific human parasites one can name Plasmodium falciparum, human pinworm and some others. The source of parasite invasion is always a human. Such specific human parasites cause the diseases that are called:
A. Anthroponoses B. Anthropozoonoses
C. Zoonoses D. Multifactorial diseases E. Infections
11. Examples of human-specific parasites are malaria plasmodium, enterobius vermicularis and some other. The source of invasion of such parasites is always a human. Such human-specific parasites cause diseases that are called:
A. Anthroponotic B. Zoonotic C. Anthropozoonotic
D. Infectious E. Multifactorial
12. A pregnant woman complains of vaginal mucosa irritation, itching and genital tracts secretion. Bacterioscopy of vaginal smears revealed large gram-positive oval oblong cells that form pseudomicelium. What is the most probable channel of infection?
A. Endogenous infection B. Sexual transmission
C. Contact infection D. Vector-borne transmission
E. Wound infection
13. A patient developed pyoinflammatory process of periodontal tissue caused by activation of the microorganisms inherent in the body, which are the part of oral mucosal microflora. What type of infection is it?
A. Relapse B. Autoinfection C. Reinfection
D. Exogenous infection E. Superinfection
14. Typical signs of food poisoning caused by C. botulinum include diplopia, swallowing and respiration disorders. These signs develop due to:
A. Enterotoxic shock development
B. Enterotoxin action
C. Adenylate cyclase activation
D. Adhesion of the agent to enterocyte receptors
