А. Present Indefinite

А. Diphtheria, smallpox, dysentery

Б. Dysenteria, vaccination, encephalitis

В. Infection, asepsis, activity

Г. Bacteriologist, general prostration, anemia

Д. Chemotherapy, hepatic damage, cancer of stomach.
834. When Edward Jenner was born?

А. 1749

Б. 1949

В. 1840

Г. 1900

Д. 2000
835. How many subgroups of infectious diseases?

А. 4

Б. 3

В. 2

Г. 5

Д. 10
836. The incubation period of Virus A lasts from:

А. 14 days to 50 days

Б. 6-8 months

В. 2 to 6 month

Г. 2 to 40 days

Д. 1 – 20 months
837. The incubation period of Virus B lasts from:

А. 2 to 6- 8 months

Б. 14-50 days

В. 28 days

Г. winter to spring

Д. 1 – 3 days
838. What is serum?

А. It is watery fluid when blood has coagulated

Б. It is pathogenic microorganism

В. It is a plasma

Г. It is incubation period

Д. It is muscle
839. Put the proper preposition: :: an attack of severe cardiac pain the patient was carried to the hospital

А. After

Б. Before

В. From

Г. Since

Д. Under
840. Put the proper preposition: :.physical examination the doctor revealed skin irritation

А. On

Б. In

В. Since

Г. Under

Д. Out
841. Finish the sentence: Most cases of cancer are considered:.

А. Incurable

Б. Advisable

В. Curable

Г. achievements

Д. Beautiful
842. Finish the sentence: Private medical service is:.