EVERYDAY SCIENCE

SCIENCE

VIRUS AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is used to prevent viral infection?
A
Antibiotics
B
Antiparallel
C
Vaccines, an injection of a weakened virus
D
Victor
Explanation: 

Detailed explanation-1: -Vaccination is the administration of a vaccine in the human body. It can be given either orally or in injection form. Vaccines boost our immune system by developing immunity against disease-causing pathogens. Vaccines prevent us from many fatal diseases.

Detailed explanation-2: -In the process of making these vaccines, the toxins are weakened so they cannot cause illness. Weakened toxins are called toxoids. When the immune system receives a vaccine containing a toxoid, it learns how to fight off the natural toxin.

Detailed explanation-3: -These people have asymptomatic infection but can still transmit the virus to others. In general, most vaccines do not completely prevent infection but do prevent the infection from spreading within the body and from causing disease.

Detailed explanation-4: -Two doses of MMR vaccine are 97% effective against measles and 88% effective against mumps. MMR is an attenuated (weakened) live virus vaccine. This means that after injection, the viruses cause a harmless infection in the vaccinated person with very few, if any, symptoms before they are eliminated from the body.

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