PATHOLOGY

PATHOLOGY MCQ

INFECTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists are testing the effectiveness of 3 different viral medicines (or vaccines) in protecting against the common cold. They sign up 1, 200 human volunteers and split them into three groups. So each group of 400 people is given one of the vaccines. The groups are studied for five years and the scientists record how many colds they get each year. What is the dependent variable in this investigation?
A
different viral medications
B
the type of common cold virus
C
the number of years
D
the number of colds each year
Explanation: 

Detailed explanation-1: -Although there are no immunizations that prevent the common cold, vaccines protect against symptoms shared with other respiratory illnesses. Examples include the COVID-19, influenza, pneumococcal, and tetanus, diphtheria, and pertussis (Tdap) vaccines.

Detailed explanation-2: -Some of the best examples of successful live, attenuated vaccines include those developed against measles, mumps, and rubella (MMR).

There is 1 question to complete.