OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC AND IMMUNE SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Scientists are testing the effectiveness of 3 different vaccines in protecting against the common cold. 1200 human volunteers are split into three groups, and each group is given one of the vaccines. The three 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?
|
|
different vaccines
|
|
|
the type of common cold virus
|
|
|
the number of years
|
|
|
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: -The authors reported vaccine effectiveness estimates of BNT162b2 against COVID-19 hospitalisation and death in the range of 70–80% any time after the second dose, and greater than 90% after the third dose.
There is 1 question to complete.