PicornoViridae

Question 1

Properties

Answer 1

ssRNA virus
Positive Sense.
Naked virus.
Replicates inside the cytoplasm Except Hep A.

Question 2

Transmission

Answer 2

Fecal-Oral
RhinoVirus - respiratory airdroplets

Question 3

Life Cycle

Answer 3

It uses host’s RNA polymerase to create proteins and another RNA-dep-RNA polymerase. It uses protease to cleave the polypeptide.

Question 4

Subtypes

Answer 4

Hep - A: Hepatomegaly
EnteroVirus - PolioVirus, EchoVirus, Coxakie A & B [ASEPTIC MENINGITIS] # 1 CAUSE.
Findings: No glucose, only protein and no bacteria in CSF.
RhinoVirus - URI