Flu Spread and Prevention Construct an epidemiological triad for an infectious disease. Define its common agent reservoir portal of exit, which is the means of transmission portal of entry and host (the chain of infection). How long is its incubation period? Does it have a common source of outbreak? Does the CDC have active surveillance on this infectious disease? Does herd immunity apply? Is it a pandemic?
Understanding the Flu: How It Spreads and How to Stay Safe
The flu is a common virus that spreads quickly from person to person, especially during cold months. It can cause mild to severe illness and, in some cases, lead to serious complications. Knowing how it spreads and how to protect yourself can help keep you healthy.
What Causes the Flu?
The flu is caused by the influenza virus. There are different types, but influenza A and B are the most common. The virus changes over time, which is why a new flu shot is needed every year.
How Does the Flu Spread?
The flu spreads mainly in three ways:
- Through the air – When someone with the flu coughs, sneezes, or talks, tiny droplets carrying the virus enter the air. Breathing them in can make you sick.
- By touching surfaces – The virus can live on objects like door handles and phones. If you touch an infected surface and then touch your face, you can get the flu.
- Through close contact – Being near someone with the flu increases your risk, especially if they have symptoms.
Who Is Most at Risk?
Anyone can get the flu, but some people have a higher chance of serious illness, including:
- Babies and young children
- Older adults
- Pregnant women
- People with chronic illnesses like asthma or diabetes
How Can You Stay Safe?
- Get a flu shot every year – This is the best way to prevent the flu.
- Wash your hands often – Soap and water help kill the virus.
- Cover your mouth and nose – Use a tissue or your elbow when coughing or sneezing.
- Stay home if you’re sick – Resting helps you recover and prevents spreading the flu. APA