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Am I Contagious? When to Stay Home Sick - Healthline

www.healthline.com/health/cold-flu/contagious

Jul 30, 2015 ... The flu is contagious a day before and five days to a week after its onset. ... There are many different viruses that can cause colds. They hit the ...

Are all viruses contagious? | Reference.com

www.reference.com/health/viruses-contagious-385cdbc6382a900a

Microbe World explains that all viruses are infectious by their nature, but not all viruses are infectious to humans. A virus requires a living host cell in order to ...

The incubation period of a viral infection - Virology Blog

www.virology.ws/2014/10/08/the-incubation-period-of-a-viral-infection/

Oct 8, 2014 ... Whether or not an infected person is contagious (i.e. is shedding virus) during the incubation period depends on the virus. For example, Ebola ...

Infection: Bacterial or viral? - Mayo Clinic

www.mayoclinic.org/diseases-conditions/infectious-diseases/expert-answers/infectious-disease/faq-20058098

As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between  ...

When are colds contagious? | Go Ask Alice!

goaskalice.columbia.edu/answered-questions/when-are-colds-contagious

Jul 30, 2015 ... In the back of my memory is the idea that one remains contagious until ... Some basic information on how colds "work": cold-causing viruses fall ...

Influenza Causes: How the Contagious Virus Is Spread - WebMD

www.webmd.com/cold-and-flu/tc/influenza-cause

The influenza virus causes the classic flu. Health professionals classify the virus as influenza type A and type B, each of which includes several subtypes or ...

Norovirus | Home | CDC - Centers for Disease Control and Prevention

www.cdc.gov/norovirus/

Apr 26, 2016 ... Overview about the virus, how it spreads, symptoms, treatment. ... Norovirus is a very contagious virus that can infect anyone. You can get it ...

What's the Difference Between Infectious and Contagious?

kidshealth.org/en/teens/contagious.html

Infectious diseases are caused by microscopic germs (such as bacteria or viruses) that get into the body and cause problems. Some — but not all — infectious ...

How Long Is Mono Contagious? - KidsHealth

kidshealth.org/en/teens/mono-long.html

The way mono works in the body is tricky, so lots of people are confused about how long it is contagious. Once someone gets mono, the virus stays in that ...

The Sneaky Life of a Virus: How Long Does a Virus Last?

www.womenshealthmag.com/health/life-of-a-virus

A contagious virus generally attacks your body over 10 days. View our sample timeline of the life of a virus for more info.

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How long is someone infectious after a viral infection? - Health ...

www.nhs.uk

How long you're infectious after a viral infection depends on the virus that caused the infection. Most viral infections are infectious before you start feeling unwell ...

How Long Is a Cold or Flu Contagious? - MedicineNet

www.medicinenet.com

Mar 4, 2016 ... Learn how cold and flu viruses spread, find out when to seek medical care for influenza or a cold, and discover the contagious period for the flu ...

Stomach flu: How long am I contagious? - Mayo Clinic

www.mayoclinic.org

You can be contagious from a few days up to two weeks or more, depending on which virus is causing your stomach flu (gastroenteritis). A number of viruses ...