Question

Which one among the following is correct?

$1$. Common cold - Droplet transmission
$2$. Typhoid - Contaminated food and water
$3$. AIDS - Shaking hands
$4$. Ringworm - Using infected towels

• A. $1$ and $2$
• B. $1$ and $3$
• C. $1,2$ and $4$
• D. $3$ and $4$

Answer 1

The correct option is C $1,2$ and $4$

Common cold - Droplet transmission
Common cold is caused by Rhinovirus. It can infect the nose and respiratory passage. The virus is transmitted through droplets resulting from coughs and sneezes of an infected person. Hence the given pair in ‘$1$’ is correct.

Typhoid - Contaminated food and water
$Salmonellatyphi$ causes typhoid fever. These pathogens generally enter the small intestine through contaminated food and water and migrate to other organs through blood. Symptoms include sustained high fever, weakness, stomach pain, constipation, headache, and loss of appetite. Hence the given pair in ‘$2$’ is correct.

AIDS - Shaking hands
AIDS stands for Acquired Immuno Deficiency Syndrome, caused by the Human Immunodeficiency Virus (HIV). It spreads by body fluids and not by touching or contact with an infected person. It spreads through sexual contact with infected person, blood transfusion from infected person and sharing needles after using for an infected person. Therefore it is not spread by shaking hands. Hence the given pair in ‘$3$’ is incorrect.

Ringworm - Using infected towels
Ringworm is a very common skin infection caused by the following fungi :
$1$. $Microsporum$
$2$. $Trichophyton$
$3$. $Epidermophyton$
The infection initially appears as red patches on the affected areas that spreads to different areas of the body affecting scalp, nails, feet, groin and beard. Transfer occurs from one person to another via direct contact with skin or or the things used by him. Hence the given pair in ‘$4$’ is correct.