Human Viruses and Viral Diseases

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Which virus is responsible for childhood gastroenteritis?

Rhinovirus

Influenza A virus

Norovirus (correct)

Respiratory syncytial virus

What virus causes German measles?

Rubella virus (correct)

Varicella-zoster virus

Hepatitis B virus

Influenza A virus

Which virus is associated with oral herpes?

Measles virus

Hepatitis C virus

Rhinovirus

Herpes simplex virus 1 (correct)

What virus causes chickenpox and shingles?

Varicella-zoster virus Signup and view all the answers

Which virus causes acute viral hepatitis?

Hepatitis B virus Signup and view all the answers

What virus causes infectious mononucleosis?

Epstein-Barr virus Signup and view all the answers

Which virus is associated with acquired immunodeficiency syndrome (AIDS)?

Human immunodeficiency viruses 1 and 2 Signup and view all the answers

What virus causes dengue hemorrhagic fever?

Dengue viruses 1 to 4 Signup and view all the answers

Which virus is associated with progressive multifocal leukoencephalopathy (PML)?

JC virus Signup and view all the answers

Which virus exhibits only one genetic subtype and infects people only once?

Mumps virus Signup and view all the answers

Why can influenza viruses repeatedly infect the same individual?

Because of periodic emergence of new genetic variants Signup and view all the answers

What has a major initiative by several governments and international bodies, including the World Health Organization (WHO), aimed to reduce significantly?

Measles-related deaths Signup and view all the answers

Which children are 10 to 1000 times more likely to die of measles compared to children in higher-income countries?

Children in lower-income countries Signup and view all the answers

What can produce severe disease in people infected with HIV or people with a hematologic malignancy?

Measles virus Signup and view all the answers

In higher-income nations, when do epidemics of measles occur?

When the virus is introduced by individuals traveling from an area of endemic disease Signup and view all the answers

What is the measles virus efficiently transmitted by?

Airborne route via aerosolized respiratory secretions Signup and view all the answers

Which family does the measles virus belong to?

Paramyxoviridae family Signup and view all the answers

How is the measles virus diagnosed?

By detection of viral RNA in respiratory secretions or urine Signup and view all the answers

What impact does the genetic diversity of viruses have on the susceptibility of the host to reinfection?

It has an important impact on the susceptibility of the host to reinfection by viruses of the same type Signup and view all the answers