Question

Annual influenza vaccinations are important for all individuals because Select one Oa the virus is stable so once the vaccine is administered, protection from antibodies is lifelong. b the vaccine prevents secondary infections in individuals with influenza c. the oral-fecal transmission route makes it easy to pass to others. d the highly contagious nature of the virus meshs that transmission from a robust individual to those with a weaker immune system, such as the young or the elderly, is facilitated in crowded winter conditions.

needing help please

Answer 1

Answer

d. The highly contagious nature of the virus means that the transmission from a robust individual to those with a weaker immune system, such as the young or the elderly, is facilitated in crowded winter condition.

Explanation:

This is because, influenza virus are not stable and change very frequently an annual vaccination is required. Flu viruses are commonly observed to show break fall during the winter season. Hence annual vaccination could help in prevention of the disease.

Why all other options are not correct

a. Influenza virus are not stable. Hence, the option (a) cannot be true. Also, annual influenza vaccination is prescribed every 6 months or 1 year, which means it does not help life long.

b. A vaccination is given to particular virus only. This vaccination induces our immune system to produce antibodies for particular viral bodies only. Hence it does not give protection from secondary infections. Thus (b) option cannot be true.

c.Although influenza can shift between oral and fecal, it can more easily spread via sneezing, coughing and touch too. Most cases, the fecal contamination is for bacterial (although viral are also transmitted via this route) the (d) option is more suitable for this discussion.