RNAV: Picornaviridae Flashcards
What are the subgroups that belong to the Picornaviridae family?
Poliovirus
Coxsackievirus
Echovirus
Paraechovirus
Hepatovirus
Rhinovirus
What are the three types of Poliovirus?
Poliovirus types 1, 2, and 3
Q2: What disease is caused by Poliovirus?
Poliomyelitis (paralytic & non-paralytic)
Aseptic meningitis
Q3: How is Poliovirus transmitted?
Fecal-oral route, Respiratory droplets
Q5: What are distinguishing characteristics of Poliovirus?
Acid-stable, Resistant to detergents, Neurotropic virus
Q6: What is the size and shape of Picornaviridae family?
~30 nm, Icosahedral
What are the two groups of Coxsackieviruses?
Coxsackie A viruses & Coxsackie B viruses
What diseases are caused by Coxsackieviruses?
Hand, Foot & Mouth Disease (HFMD)
Herpangina
Myocarditis
Aseptic meningitis
How is Coxsackievirus transmitted?
Fecal-oral route, Respiratory droplets
What are the distinguishing characteristics of Coxsackieviruses?
Type A – Skin, mucosal infections;
Type B – Myocarditis, Pleurodynia
How many types of Echovirus are there?
Echovirus types 1-33
What diseases are caused by Echoviruses?
Aseptic meningitis
Respiratory infections
Febrile rash illnesses
How are Echoviruses transmitted?
Fecal-oral route, Respiratory droplets
What are the distinguishing characteristics of Echoviruses?
Common cause of viral meningitis, Stable in the environment
How many types of Parechovirus exist?
Parechovirus types 1-6
What diseases are caused by Parechoviruses?
Neonatal sepsis-like illness, Meningitis, Gastrointestinal infections
How are Parechoviruses transmitted?
Fecal-oral route, Respiratory droplets
What are the distinguishing characteristics of Parechoviruses?
Closely related to enteroviruses, Can cause severe neonatal infections
What is the only member of the Hepatovirus group?
Hepatitis A Virus (HAV)
What disease is caused by Hepatitis A Virus?
Acute Hepatitis A
How is Hepatitis A Virus transmitted?
Fecal-oral route, Contaminated food/water
What are the distinguishing characteristics of Hepatitis A Virus?
Stable in the environment, Acid-resistant
What disease is caused by Rhinoviruses?
Common cold
How are Rhinoviruses transmitted?
Airborne droplets, Direct contact
What are the distinguishing characteristics of Rhinoviruses?
Prefers cooler temperatures (33°C), Sensitive to acid
