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Am I Contagious? When to Stay Home Sick - Healthline

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

The flu is contagious a day before and five days to a week after its onset. Young children, people ... The virus comes out in the droplets of sneezes and coughs.

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 ...

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 ...

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

www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

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 ...

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  ...

Is Bronchitis Contagious? When You Can Catch It and How to ...

www.webmd.com/lung/is-bronchitis-contagious

It depends on the type of virus that you have. In most cases, you'll be contagious for a few days, and possibly as long as a week. Since you may not know what ...

Is My Kid Contagious? - Parents

www.parents.com/health/cold-flu/cold/is-my-child-contagious/

Because colds are caused by viruses, antibiotics are ineffective, and the American Academy of Pediatrics doesn't advise administering cough and cold meds to ...

Bacteria and Viruses - Do Bugs Need Drugs?

www.dobugsneeddrugs.org/guide/bacteria-and-viruses/

Feb 29, 2012 ... Both viruses and bacteria cause infections, but antibiotics only work against bacteria. ... Are more contagious than bacterial infections. (If more ...

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 ...

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

www.cdc.gov/norovirus/

Apr 26, 2016 ... Norovirus is a very contagious virus that can infect anyone. You can get it from an infected person, contaminated food or water, or by touching ...

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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 ...

When are colds contagious? | Go Ask Alice!

goaskalice.columbia.edu

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 ...