From the following viruses, which one transfers from one person to other via infected needles or unprotected sex?

The correct answer is Hepatitis B.

Key Points

• Viruses are obligate parasites.
• It is a causative agent of diseases in plants and animals.
• In humans, it causes AIDS, hepatitis, influenza, mumps, and measles.
• The Hepatitis B virus causes hepatitis B.
• It affects the liver.
• Hepatitis B is transferred from one person to other via infected needles or unprotected sex.
• It results in loss of appetite, stomach pain, nausea, and jaundice. 
• The Hepatitis B vaccine can prevent it.

Additional InformationHepatitis A:

• Hepatitis A virus causes it.
• It affects the liver and causes inflammation and malfunction.
• It results in vomiting, diarrhea, abdominal pain, and grey-colored stool.

Dengue virus:

• It causes dengue fever.
• It transmits by the bite of infected mosquitoes.
• It results in pain behind the eyes, swollen glands, and rash.

Rotavirus:

• It causes diarrhea.
• It results in vomiting and dehydration.