REPORT (Circoviridae)

Question 1

General description of CIRCOVIRIDAE:

Answer 1

Small
Non-enveloped virus
Circular, single-stranded DNA
Infect both plants and animals

Question 2

Morphological structures:

Answer 2

Icosahedral Capsid shape(20 sides)
very small, ranging from 17-20 nm
CAPSID- non enveloped and composed of protein shell
lip

Question 3

Morphological structures:

Answer 3

Icosahedral Capsid shape(20 sides)
very small, ranging from 17-20 nm
CAPSID- non enveloped and composed of protein shell
lip

Question 4

HOST- primarily affects vertebrates

Answer 4

Pig, dog and birds

Question 5

Transmission:

Answer 5

Horizontal Transmission
Through contact with contaminated feces or oral secretions

Vertical transmission
From mother to offspring via the EGGS

Question 6

Transmission:

Answer 6

Horizontal Transmission
Through contact with contaminated feces or oral secretions

Vertical transmission
From mother to offspring via the EGGS

Question 7

Replication

Answer 7

1.ATTACHMENT
2.ENTRY
3. UNCOATNG
4. REPLICATION
5. MATURATION/ ASSSEMBLY
9. RELEASE

Question 8

Genus:

Answer 8

Circovirus
Cyclovirus

Question 9

Genus:

Answer 9

Circovirus
Cyclovirus

Question 10

DISEASE ASSOCIACATED

Answer 10

1. Porcine Circovirus(PCV) in pigs
2. Beak & Feather Disease in birds
3. Canine Circovirus (CanineCV)

Question 11

Porcine Circovirus Diseases (PCVD) in Pigs:

Answer 11

2 TYPES:
PCV1 and PCV2

Question 12

DISEASE ASSOCIACATED

Answer 12

1. Porcine Circovirus(PCV) in pigs
2. Beak & Feather Disease in birds
3. Canine Circovirus (CanineCV)

Question 13

Cause: Porcine Circovirus Type 2 (PCV2)
Diseases:

Answer 13

1. Post-Weaning Multisystemic Wasting Syndrome (PMWS):
   Symptoms: Poor growth, weight loss, lymphadenopathy, respiratory distress, and diarrhea.
2. PCV2-associated Pneumonia:
   Symptoms: Respiratory issues such as coughing and difficulty breathing.
3. PCV2-associated Dermatitis and Nephropathy Syndrome (PDNS):
   Symptoms: Skin lesions, kidney damage, fever.
4. Reproductive Issues: Abortion or stillbirths in sows.

Question 14

CYCLOVIRUS

Answer 14

Another genus within the CIRCOVIRIDAE FAMILY
Also circular, ssDNA genomes
Typically infects invertabrate

Question 15

HOST:

Answer 15

mostly found in insects(invertebrate)
- have also been detected in human and animals though
their pathogenicity remains unclear.