EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The polio virus enters the body through.
A
Mosquito bites
B
Tick bites
C
Contaminated food and water
D
Saliva and secretion from the nose
Explanation: 

Detailed explanation-1: -Transmission. Poliovirus is very contagious and spreads through person-to-person contact. It lives in an infected person’s throat and intestines. It can contaminate food and water in unsanitary conditions.

Detailed explanation-2: -Polio (poliomyelitis) is a contagious disease that can be prevented by vaccination. It is caused by poliovirus type 1, 2 or 3. It is spread from person to person and through contaminated food and water.

Detailed explanation-3: -For example, you can get polio if you: Eat raw or undercooked food or drink water or other drinks that are contaminated with the stool of an infected person.

Detailed explanation-4: -Poliovirus infection occurs by the fecal-oral route, when the host ingests the virus, which replicates in the alimentary tract. The virus is then shed in the feces. Most polio infections are asymptomatic. In about 5 percent of cases, the virus replicates in other tissues.

Detailed explanation-5: -Poliovirus can spread from person to person or by food or water containing human faeces and less commonly from infected saliva.

There is 1 question to complete.