When a person sneezes or cough, droplets spread in the air or fall on the ground and nearby surfaces.
If another person is nearby and inhales the droplets or touches these surfaces and further touches his face, eyes or mouth, he or she can get an infection.
If the distance is less than 1 meter from the infected person.
All the above are correct.
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COVID-19 occur in all age groups.
Coronavirus infection is mild in children.
Older person and persons with pre-existing medical conditions are at high risk to develop serious illness.
All the above are correct
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Fever
Cough
Shortness of breath
All the above
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Due to their crown-like projections.
Due to their leaf-like projections.
Due to their surface structure of bricks.
None of the above
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MERS
SARS
Both A and B
Neither A nor B
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