Which of the following viruses cause most colds?


a. rhinoviruses
b. parainfluenza viruses
c. pneumoviruses
d. bunyaviruses

Verified step by step guidance

1. Identify the common viruses known to cause colds.
2. Understand that the common cold is primarily caused by viruses that infect the upper respiratory tract.
3. Recognize that rhinoviruses are the most common viral infectious agents in humans and are the predominant cause of the common cold.
4. Consider the other options: parainfluenza viruses, pneumoviruses, and bunyaviruses, and their typical associated diseases.
5. Conclude that among the given options, rhinoviruses are the most likely to cause the majority of common colds.

Key Concepts

Rhinoviruses

Rhinoviruses are a group of viruses that are the primary cause of the common cold. They belong to the Picornaviridae family and are known for their ability to replicate at the cooler temperatures found in the upper respiratory tract. With over 100 different serotypes, rhinoviruses are highly prevalent and can easily spread through respiratory droplets or contaminated surfaces.

Common Cold Symptoms

The common cold is characterized by symptoms such as a runny or stuffy nose, sore throat, cough, and sneezing. These symptoms result from the body's immune response to the viral infection. Understanding these symptoms is crucial for distinguishing the common cold from other respiratory illnesses, such as influenza, which may require different management.

Viral Transmission

Viral transmission refers to the methods by which viruses spread from one host to another. For rhinoviruses, transmission typically occurs through respiratory droplets when an infected person coughs or sneezes, as well as through direct contact with contaminated surfaces. Recognizing these transmission routes is essential for implementing effective prevention strategies, such as hand hygiene and avoiding close contact with infected individuals.