Common cold is not cured by antibiotics because it is
Caused by a virus
Caused by a Gram-positive bacterium
Caused by a Gram-negative bacterium
not an infectious disease
As learnt in
common cold -
Many viruses also cause diseases in human beings
- wherein
Rhino viruses represent one such group of viruses which cause one of the most infectious human ailments – the common cold.
Viruses are not affected by antibiotics
Option 1)
Caused by a virus
This option is correct
Option 2)
Caused by a Gram-positive bacterium
This option is incorrect
Option 3)
Caused by a Gram-negative bacterium
This option is incorrect
Option 4)
not an infectious disease
This option is incorrect
Antibiotics are medicines used to treat infections caused by bacteria. Antibiotics don't work against infections caused by viruses, such as colds and flu. So there's no point taking antibiotics to treat a cold or flu. so the answer is option 1