Secondary immunodeficiency often develops as a result of

an infection. Certain pathogens multiply within immune system cells, leading to

their destruction. Which diseases can have such an impact on the immune system?

A pediatrician suspects scarlet fever in a 2-year-old

child who presents with catarrhal symptoms and a skin rash. The child was given

a small dose of serum containing antibodies to the streptococcal erythrogenic

toxin. At the injection site, the rash disappeared. What do these reaction

results indicate?

A man who was bitten by an unknown dog sought surgical

treatment. He had wide, ragged wounds on his face. What treatment should be

provided to prevent rabies?

In the course of a surgical operation, a blood

transfusion was administered.

During the bacteriological examination of rinsing (after

lavage) water from a patient with food poisoning, a pure bacterial culture was inoculated.

The culture showed features typical of a gram-negative, motile bacillus,

growing in achromic colonies within the Endo environment. Which pathogen is the

most likely cause of the disease?

Aspirin has its

anti-inflammatory effect due to inhibiting cyclooxygenase activity. Which

biologically active acids will decrease as a result of aspirin intake?

A 1.5-year-old child presents

with both cognitive and physical developmental delays, discoloration of skin

and hair, and a decrease in catecholamine concentration in the blood. When a

few drops of a 5% solution of trichloroacetic acid were added to the child's

urine, it turned olive green. These changes are indicative of the following

pathology of amino acid metabolism:

A donor skin transplantation was

performed on a patient with extensive burns. On the 8

A 16-year-old boy underwent an

appendectomy after being hospitalized on account of right lower quadrant

abdominal pain lasting for 18 hours. The removed appendix is edematous and

erythematous. Which type of cells must have infiltrated the appendix?

      A           

      B          

      C         

      D          

       E          

After the removal of a patient's

gallbladder, the process of calcium absorption through the intestinal wall was

disturbed. Which vitamin stimulates this process?