-
The flu infection is viral. General virus structure and knowing how the flu spreads is important. Symptoms and severity give excellent motivation to follow prevention tips. Note: hospital environments can be ideal for catching flu.
Virus Components
A virus is a piece of genetic material (DNA or RNA) surrounded by protective covering. Viruses don't reproduce by themselves. Rather, they infect a host cell, using it to make more viruses.
How Flu Spreads
The flu spreads through the air and on contaminated surfaces. If you grasp a contaminated door handle and then rub your eyes or mouth, there's a chance the virus will get into your body.
Common Symptoms
High fever, sore throats, and runny nose are common symptoms of the flu. Flu symptoms are similar to cold symptoms, but typically more severe.
Severity
Depending on a person's health, the flu can be a minor nuisance or life-threatening. Remember that since flu is viral, antibiotics--which work against bacteria--are not effective against it.
Reduce Infection Risk
Vaccinations protect against a given strain, but since the flu mutates into slightly different strains, vaccinations don't always work. Diligent hygiene and avoiding crowded places also lowers infection risk.
Hospital Warning
Hospitals have many sick people close together. Communicable diseases like the flu can spread quickly in a waiting-room environment.
Source:
Science Education Resource Center at Carleton College: Are Viruses Alive?
Centers For Disease Control: Season Influenza
Biomedical Sciences, University of South Carolina: Influenza (Symptoms and Complications)
More Information:
Centers for Disease Control: Influenza Symptoms
Copyright 2023, Wired Ivy, LLC