Flu-infected humans can infect other organisms.
Flu-positive people can infect humans and other animals.
Flu is contagious.
If you get it, you can get it everywhere.
And the more you infect others, the more they can infect you.
Flu vaccines contain an active virus that infects the body.
Flu vaccination rates are rising in the United States and around the world, as more people are receiving the vaccine.
In 2016, there were 7.3 million flu-related emergency room visits, and about 40 percent of them were for influenza, according to the CDC.
There are nearly 70 million flu shots in use worldwide, and the flu vaccine is more popular than ever.
But flu is not the only virus that can infect people.
Vaccines are not always perfect, as some viruses are naturally lethal and some viruses can be more infectious than others.
Flu, however, is among the most contagious, and it is becoming a worldwide epidemic.
How does the flu infect people?
Flu is spread through a process called contact transmission.
When someone coughs, sneezes, or bites a person, they transmit the virus to the rest of the community.
The virus can be transmitted by touching an infected person, or from someone who has not been vaccinated.
The only way to prevent the spread of the flu virus is to protect yourself from it.
To protect yourself, you need to: wear a mask or goggles.
Cover up if possible, especially around your face.
If a person coughs or sneezed, wear a mouthpiece, a nose protector, or a nasal spray.
Don’t touch anyone with flu-containing body fluids.
If someone has a fever or has a cough, the person is contagious and should be isolated from others.
Never use cough syrups or other body fluids in an attempt to prevent spreading the flu.
Don´t drink water that has been contaminated with a flu-contaminated water bottle.
If it comes in contact with the flu, drink only filtered or distilled water.
Use a hand sanitizer for handwashing.
Wear gloves and use a clean, disinfected cloth to wipe your hands or your face before and after washing your hands.
Wear a mask if you are at risk of getting flu.
The CDC recommends people wash their hands with soap and water at least once a day, preferably after having had a full body wash.
If that doesn’t work, you may be able to prevent getting the flu by wearing a mask, masking your mouth, or wearing a face mask.
If anyone has a cold, seek medical attention.
If the flu has spread from a close relative or household member to others, call 911 and ask if the person with the cold is contagious or has respiratory illness.
Tell the person to get medical help if they feel unwell or if they have difficulty breathing.
If no one is available, call a healthcare provider.
You may be contagious if you have: a fever of at least 104.7°F (50°C) or a sore throat or cough that lasts more than 4 hours.
A flu vaccine, such as the Influenza vaccine, may be used to protect you from getting the virus.
Flu shots are given once a month.
They can be bought at pharmacies or at the doctor´s office.
The vaccine is a single shot.
It contains two doses of the influenza virus.
The first dose is administered as a nasal sprayer, which contains a thin layer of the virus, then drops over the nose.
A second dose is injected through a needle.
Both doses are given twice a day for three months.
The number of doses depends on how many people are in the household and how many other people are vaccinated.
If two doses are administered to each person, the number of shots given to each household member will be three doses.
If four doses are used, the total number of vaccines administered to the household will be four.
Flu vaccine effectiveness depends on the person who is receiving the shot.
For the first dose, about 40% of the vaccine will be effective, according the CDC, which means the vaccine is 95 percent effective.
The second dose will only be about 12 percent effective, but it is 90 percent effective when given to a household with three or more doses.
The third dose is about 80 percent effective and the fourth dose is 70 percent effective for household members with two or more exposures.
However, the third dose does not require a booster dose and is administered in a single dose, so a person who has received the first shot but has not yet received the second will not need to receive the third.
If both doses of a flu vaccine are given, about 90 percent of the vaccinated person will be protected.
The flu vaccine also has some serious side effects, including fever, cough, and sore throat, and can cause a rare and serious allergic reaction called anaphylaxis.
The most common