For most people it has about a week to ten days of symptoms, although you would probably have had it for a day or two before you felt any symptoms.
The cough can last a bit longer. If the cough isn't gone in two weeks, or if it changes, consult your health care professional to be sure that you don't have a secondary infection or complications.
According to the CDC, if you have a fully functioning immune system, you are considered no longer contagious once you go a full 24 hours without a measured fever (when taking no fever reducers). If your immune system is compromised, or if you have other underlying medical conditions, then the severity and/or duration can vary.
The answer depends on which viral illness is in question. Some viruses last for 24 hours while others take several months to run "their course." Many viruses lay dormant and never leave until the host has passed away....there just is no cure for some...at least not yet!
The lifetime of a virus usually depends on it's host and what type of virus it is. However, generally speaking a virus lasts 10-14 days, so it would take about that long to get over it.
Gastroenteritis is usually caused by a virus. There are hundreds of viruses that can cause it. The illness can last from 3-14 days, depending on the particular virus and the health of the person.
A virus or illness causing fever and headache: flu.
A very long time.
The length varies. I've had a chronic illness for 6 years and should grow out of it. Some are life long.
herpes lasts forever
Probably until the person who had the virus is cured. But you never know how long bacteria can last.
i think it is about like a week , then i think the virus goes away
Haemorrhagic Fever
Zombies are mythological creatures and, as such, do not exist.
A virus can last anywhere from a couple of days up to several weeks. It really depends on what kind of virus it is and if the child has had the virus recently or not.
Viral illness 2 weeks, Bacterial with treatment 2 weeks unless serious. Serious illnesses are not included in my answer.
Every disease is an illness but not every illness is a disease (A disease is not a virus, parasite, etc but an illness could be)