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How Long Is Cold And Flu Contagious
How Long Is Cold And Flu Contagious. Between its ph and its porous nature, our body’s natural barrier. Certain cold and flu germs can survive on surfaces such as countertops, doorknobs, and phones for up to 24 hours.

However, you are most contagious for the first 2 or 3 days after symptoms appear. Typically, you’re contagious from 1 day before you have any symptoms. For colds, you become contagious about a day before symptoms even develop.
Some Otherwise Healthy Adults May Be Able To Infect Others Beginning 1 Day Before Symptoms Develop And Up To 5 To 7 Days After Becoming Sick.
You stay that way for 5 to 7 days after you start feeling sick. With the flu, you’re contagious 1 day before symptoms show until about 5 to 7 days after symptoms begin. How long is the common cold contagious?
In General, Here’s How Long You’re Contagious With These Common Illnesses:
Prior to this decade, only a handful of studies looked at how long flu viruses retain their infectiousness on common surfaces. A 1982 study found influenza a remained contagious up to 48 hours on hard plastic or stainless steel, while a 2008 publication found these viruses stayed infectious for up to three days on swiss bank notes. Cold, flu and other related viruses may stay infectious for several hours to days, depending on where their droplets fall.
This Usually Takes 1 To 2 Weeks.
However, you are most contagious for the first 2 or 3 days after symptoms appear. Colds are spread by germs from coughs and sneezes, which can live on hands and surfaces for 24 hours. These include the health of your immune system, the cold virus you have been infected with, and how you care for yourself while sick.
Need More Flu And Cold Information?
Viruses generally stay active longer on stainless steel, plastic and similar hard surfaces than on fabric and other soft surfaces. Usually, the risk of contagion is greatest in the first three days of illness. How long is a cold contagious (and why)?
Many People With Flu Or The Common Cold Do.
Cold symptoms last for four to seven days. For colds, most individuals become contagious about a day before cold symptoms develop and remain contagious for about five to seven days. You will usually be more contagious during the first two or three days, when your symptoms are likely to be at their worst.
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