Define vaccine. Give any two example.
class 9
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Answer:
Vaccines help protect against many diseases that used to be much more common. Examples include tetanus, diphtheria, mumps, measles, pertussis (whooping cough), meningitis, and polio. Many of these infections can cause serious or life-threatening illnesses and may lead to life-long health problems.
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Answer:
Vaccines are dead or weakened disease causing microbes that are injected in our body, it triggers the production to antibodies. These antibodies stays in our body and protect us from the disease causing microbes for a long time.
Examples:
TAB-Typhoid
Salk's vaccine-Polio
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