Viral Infections | MCQs

Explanation

Explanation

Hepatitis C is a liver infection caused by the hepatitis C virus. 

Hepatitis C is often described as “acute,” meaning a new infection, or “chronic,” meaning long-term infection.

Explanation

 Hepatitis A is primarily spread through contaminated food or water that has been in contact with infected feces, meaning it's transmitted through the fecal-oral route. 

Explanation

Interferon is a type of protein produced by the body's immune system in response to viruses.

It helps activate immune cells and inhibit viral replication.

It playing a key role in antiviral defenses.

Explanation

The false statement regarding Hepatitis A virus is Causes chronic liver disease. 

 Hepatitis A is typically a mild, self-limiting illness that does not lead to chronic liver disease unlike hepatitis B and C. 

Explanation

A contagious disease is one that spreads through direct or indirect contact with an infected person.

Examples include the flu and common cold.

"Continuous" refers to something ongoing, unrelated to disease.

Explanation

It has an incubation period of between 7 and 17 days after exposure

And only becomes infectious once the fever develops.

A distinctive rash appears two to three days later.

The most infectious period is during the first week of illness

Although a person with smallpox is still infectious until the last scabs fall off.

Explanation

Answer:

D

Foot-and-mouth disease (FMD) is a catastrophic disease of livestock caused by the picornavirus. There are seven serotypes of the virus. All kinds of ungulates are vulnerable.

Explanation

Measles is a very contagious viral disease that especially affects children and can cause severe health problems, including:

• severe diarrhea
• ear infections
• blindness
• pneumonia 
• encephalitis (swelling of the brain)

Some of these complications can lead to death.

Explanation

This virus requires hepadna virus helper functions for propagation in hepatocytes,

and is an important cause of acute and severe chronic liver damage in many regions of the world.