Vet Microbiology Strept

Question 1

What are the 5 extracellular material of medical importance from streptococcus

Answer 1

1. Haemolysin
2. Streptolysin
3. Fibrinolysin
   4 hyaluronidase
   5.proteinase
4. Adhesins

Question 2

Are strept motile

Answer 2

Yes

Question 3

Streptococcus are gram what

Answer 3

Gram positive

Question 4

Streptococcus pyogenes cause what in humans

Answer 4

Sore throat, scarlet fever, diffuse rash, fever in children

Question 5

Streptococcus agalactiae

Answer 5

Causes human meningitis, bovine mastitis, with loss of lactating ability (agalactia)

Question 6

In cattle streptococcus causes

Answer 6

Severe mastitis

Question 7

In horses streptococcus causes which condition state 5

Answer 7

Pneumonia, endometritis, abortion, wound infection, lymph node abscesses

Question 8

Streptococcus inae is a streptococcus of which animal, it is implicated in the following disease

Answer 8

Fish, it is implicate in cellulitis, endocarditis and meningitis, bacteramia in blood

Question 9

State samples that can be taken for streptococcus diagnosis

Answer 9

Pus in case of abscess, milk in mastitis, joint fluid in arthritis, csf in meningitis, urine in urinary tract, blood in septicemia

Question 10

Gram stain will yield

Answer 10

Gram positive cocci singly or in chains

Question 11

The pathogenic strains grow best in which medium

Answer 11

In serum or blood enriched medium

Question 12

_____ is used in identifying some streptococci

Answer 12

Arginine broth

Question 13

The best temperature for incubator of streptococcus

Answer 13

37°c

Question 14

Descripe strept colonies

Answer 14

Small to large in size, round, mucoid

Question 15

Descripe strept colonies

Answer 15

Small to large in size, round, mucoid