Hepatitis, EBV, CMB

Question 1

What virus is Human herpes virus 4?

Answer 1

Epstein-Barr Virus (EBV)

Question 2

What does EBV affect?

Answer 2

B-lymphocytes

Question 3

How is EBV spread?

Answer 3

saliva

Question 4

How long is the incubation period with infectious Mono?

Answer 4

6 weeks

Question 5

What are Downey cells activated by?

Answer 5

CD8 T lymphocytes

Question 6

What are the 3 classic laboratory criteria for Mono?

Answer 6

Lymphocytosis
significant number of atypical Lymphocytes
Serologic evidence

Question 7

What is the best marker of acute EBV infection?

Answer 7

viral capsid antigen (VCA) IgM

Question 8

What is the single best test to verify a PREVIOUS infection with EBV?

Answer 8

VCA IgG

Question 9

When are VCA IgG antibodies first detected?

Answer 9

the 1st month

Question 10

When is the Ebstein-Barr Nuclear antigen?

Answer 10

day 90

Question 11

When is the incubation period of CMV?

Answer 11

40-60 days

Question 12

If hepatitis and EBV are ruled out, what should you think of as the diagnosis?

Answer 12

CMV

Question 13

What indicates that a person was infected with CMV at some time during their life?

Answer 13

CMV IgG

Question 14

What indicates a current primary infection of CMV?

Answer 14

CMV IgM