IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

LYMPHATIC AND IMMUNE SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why isn’t there a vaccine for the common cold?
A
it’s not really a virus
B
it’s caused by an extrememly tiny virus
C
many different viruses cause cold symptoms
D
cold vaccines trigger autoimmune responses
Explanation: 

Detailed explanation-1: -A vaccine to prevent the common cold has been difficult to make, primarily because there are more than 200 different varieties of viruses that can cause colds.

Detailed explanation-2: -It will be difficult to develop the vaccine because rhinovirus infects quickly and mutates, or changes quickly. In clinical trials that tested a cold vaccine with just one strain, results showed that it was not protective.

Detailed explanation-3: -Although there are no immunizations that prevent the common cold, vaccines protect against symptoms shared with other respiratory illnesses. Examples include the COVID-19, influenza, pneumococcal, and tetanus, diphtheria, and pertussis (Tdap) vaccines.

Detailed explanation-4: -The common cold is caused by many different viruses, with the most common being rhinovirus. Because there are over 100 subtypes of rhinoviruses, it’s hard to develop an effective drug against all of them – one of the reasons there is no cure for a cold yet.

Detailed explanation-5: -The common cold can cause different symptoms in different people. If your cold is caused by a rhinovirus but your friend’s cold is caused by an adenovirus, for example, you may not have the exact same symptoms.

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