Question

1. how is the flu transmitted from one person to another?

it is transmitted through blood.
it is transmitted by the saliva droplets of coughs and sneezes and by saliva on objects.
it is transmitted through the bites of mosquitoes and ticks.
it is sexually transmitted.

Explanation:

The flu is an airborne virus. When an infected person coughs or sneezes, saliva droplets containing the virus are released into the air. Others can inhale these droplets. Also, if the saliva (with the virus) lands on objects and then a non - infected person touches those objects and then their face (especially mouth, nose, or eyes), they can get infected. Blood - borne transmission is more common for diseases like HIV (in some cases) or hepatitis B/C. Mosquito and tick bites transmit diseases like malaria (mosquito) or Lyme disease (tick). Sexual transmission is for diseases like HIV (in some modes), syphilis, etc.

Answer:

It is transmitted by the saliva droplets of coughs and sneezes and by saliva on objects.