Lesson 6

Question 1

Rickettsia cultivation is possible in?

Answer 1

obligate parasites
cultivation is possible only in living tissues or cells
usually grow in the yolk sac of a chick embryo

Question 2

Chlamydia are cultured in?

Answer 2

the yolk sac of a chicken embryo or on tissue cultures of vertebrates.

Question 3

Hemagglutinationis?

Answer 3

A reaction that causes clumping of red blood cells in presence of some enveloped viruses, such as the influenza virus. A glycoprotein on the viral surface, namely hemagglutinin, interacts with red blood cells, leading to the clumping of red blood cells and the formation of a lattice