Pathogens

Question 1

Describe Staphylococcus aureus.

Answer 1

Bacteria

Unicellular, bound by cell wall, nucleus (DNA/RNA nucleic acids) not bound

Gram Positive

Appear as cluster of “grapes”

0.5 - 5 um

Question 2

Describe Parvo virus.

Answer 2

Particle, not cell

Obligate parasites

Centre core of nucleic acid called genome surrounded by protein capsid

Icosahedral shape

20 - 300nm

Question 3

Describe Micosporum canis.

Answer 3

Filamentous fungus

Produce hyphae which contain cytoplasm and nuclei

3um - mushroom sized

Question 4

Describe Chlorella pyrenoidosa.

Answer 4

Unicellular algae

composed of nucleus, cytoplasm, chloroplast, starch granule

0.5um - kelp sized

Question 5

Describe Toxoplasma gondii.

Answer 5

Protozoa

Membrane bound nucleus

Resembles a normal animal cell

10 - 20 um

Question 6

Is E.coli gram positive or gram negative and what shape of bacteria is it?

Answer 6

Gram negative bacillus

Question 7

Name 6 canine bacterial infections

Answer 7

Kennel cough (Bordetella bronchiseptica)

Leptospirosis (Leptospira spp.)

Staphylococcus spp.

Salmonella spp.

Campylobacter jejuni

Clostridium tetani

Question 8

Name 6 feline bacterial infections

Answer 8

Feline Influenza (Bordetella bronchiseptica/ Chlamydophila felis)

Chlamydia (Chlamidophila felis)

Feline Infectious Anaemia (Mycoplasma haemofelis)

Salmonella spp.

Campylobacter jejuni

Pasteurella spp.

Question 9

Name 5 canine viruses

Answer 9

Canine parvovirus

Canine distemper virus

Infectious canine hepatitis

Rabies virus

Kennel cough (Canine parainfluenza virus/ Canine adinovirus-2/ Canine herpes virus/ Canine reovirus)

Question 10

Name 5 feline viruses

Answer 10

Feline influenza (Feline herpes virus-1/ feline calicivirus)

Feline enteritis (Feline parvovirus/ feline panleucopenia virus)

Feline leukaemia virus

Feline infectious peritonitis (from corona virus)

Feline immunodeficiency virus

Question 11

Name 2 fungal infections in cats and dogs.

Answer 11

Dermatophytosis (Microsporus spp./ Trichophyton spp.)

Malassezia pachydermatitis

Aspergillus fumigatus (dogs only)

Question 12

Name 2 canine protozoa

Answer 12

Giardia spp.

Cryptosporidium parvum

Question 13

Name 1 feline protozoa

Answer 13

Toxoplasma gondii

Question 14

Name 3 Romanowski stains used for identifying blood borne parasites

Answer 14

Diff-quik

Leishman’s

Geimsa

Question 15

Name 3 Gram -ve pathogens

Answer 15

Salmonella (bacillus)

Campylobacter (vibrio)

Leptospira (spirochaete)

Escherichia coli (bacillus)

Borrelia burgdoferi (spirochaete)

Question 16

Name 3 Gram +ve pathogens

Answer 16

Staphylococcus (grouped cocci)

Streptococcus (stringed cocci)

Clostridium tetani (bacillus)