BIOLOGICAL CLASSIFICATION
VIRUSES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It is harmless
|
|
|
It is pathogenic, but not usually deadly
|
|
|
It is usually deadly, but not pathogenic
|
|
|
It cannot be spread by person-to-person contact
|
Detailed explanation-1: -Many different respiratory viruses can cause the common cold, but rhinoviruses are the most common. Rhinoviruses can also trigger asthma attacks and have been linked to sinus and ear infections.
Detailed explanation-2: -The common cold is a viral infection of your nose and throat (upper respiratory tract). It’s usually harmless, although it might not feel that way. Many types of viruses can cause a common cold.
Detailed explanation-3: -It can result from any one of more than 200 different viruses. But, the rhinoviruses causes most colds. The common cold is very easily spread to others. It’s often spread through airborne droplets that are coughed or sneezed into the air by the sick person.
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.