are cold and throat viruses contageous
When an infected cell dies, new virus particles are released and go on to infect other cells. Some of the symptoms of a cold are caused by the actions of the virus. For example, destruction of cells lining the respiratory tract or throat can cause sore throat, cough, and runny nose.Other symptoms are caused by the body's immune reaction to the virus.ear Healthy and wanting to stay that way, The common cold, also known as an upper respiratory infection (URI), can be caused by any of more than 200 viruses. These viruses attack and multiply in the cells that line the nose and throat. Colds are often spread through touch. A cold is an upper respiratory infection characterized by a combination of coughing, sneezing, congestion, runny nose, headache, and/or sore throat. It is caused by one of a multitude of viruses and is very contagious.The period of contagiousness actually starts a day or two before you even feel sick. cold is an upper respiratory infection characterized by a combination of coughing, sneezing, congestion, runny nose, headache, and/or sore throat. It is caused by one of a multitude of viruses and is very contagious. Viral Throat Infections. Aside from strep throat, most sore throats caused by are contagious, viral throat infections that cannot be treated with antibiotics. The most common culprits of a viral throat infection include coxsackievirus, mononucleosis, and the flu.Mononucleosis (mono) is a virus that causes symptoms that can last for weeks or months at a time. Viral throat infections are best treated with rest, liquids and other home remedies.esides a sore throat, symptoms of a viral infection may include a low-grade fever, a runny or stuffy nose and a slight cough. Mild sore throats also can accompany a cold or flu. Colds are viruses, too. According to the Mayo Clinic, there are more than 100 viruses that cause colds. They hit the respiratory system just like the flu, causing a runny or stuffed up nose, watery eyes, perhaps a sore throat, and sometimes a cough.You might get a low fever.Unlike the flu, colds come on slowly.ccording to the Mayo Clinic, there are more than 100 viruses that cause colds. They hit the respiratory system just like the flu, causing a runny or stuffed up nose, watery eyes, perhaps a sore throat, and sometimes a cough. You might get a low fever. Dear Healthy and wanting to stay that way, The common cold, also known as an upper respiratory infection (URI), can be caused by any of more than 200 viruses. These viruses attack and multiply in the cells that line the nose and throat. Colds are often spread through touch.ear Healthy and wanting to stay that way, The common cold, also known as an upper respiratory infection (URI), can be caused by any of more than 200 viruses. These viruses attack and multiply in the cells that line the nose and throat. Colds are often spread through touch. Fever, chills, fatigue, body aches, sore throat, and headache are common symptoms of flu. Not everyone with flu will have a fever. The flu can cause mild to severe illness, and at times can lead to death.The flu is different from a cold.The flu usually comes on suddenly.ever, chills, fatigue, body aches, sore throat, and headache are common symptoms of flu. Not everyone with flu will have a fever. The flu can cause mild to severe illness, and at times can lead to death. The flu is different from a cold. The flu usually comes on suddenly. People are most contagious for the first 2 to 3 days of a cold. A cold is usually not contagious after the first week. Cold symptoms usually start about 2 or 3 days after you came in contact with the virus, although it could take up to a week.eople are most contagious for the first 2 to 3 days of a cold. A cold is usually not contagious after the first week. Cold symptoms usually start about 2 or 3 days after you came in contact with the virus, although it could take up to a week. Seasonal influenza, commonly called “the flu,” is caused by influenza viruses, which infect the respiratory tract (i.e., the nose, throat, lungs). Unlike many other viral respiratory infections, such as the common cold, the flu can cause severe illness and life-threatening complications in many people.ever, chills, fatigue, body aches, sore throat, and headache are common symptoms of flu. Not everyone with flu will have a fever. The flu can cause mild to severe illness, and at times can lead to death. The flu is different from a cold. The flu usually comes on suddenly. Besides a sore throat, symptoms of a viral infection may include a low-grade fever, a runny or stuffy nose and a slight cough. Mild sore throats also can accompany a cold or flu.esides a sore throat, symptoms of a viral infection may include a low-grade fever, a runny or stuffy nose and a slight cough. Mild sore throats also can accompany a cold or flu. The contagious period for a cold lasts about three to four days into the illness. As a general rule, people with a cold are most contagious about three days after their initial exposure to the virus. For more information on colds, influenza and related topics, check out the links on the next page.any of us understand that when it comes to a cold or the flu, we're most contagious before we start feeling sick; that by the time we've got a runny nose, sore throat and achy muscles, the damage to the people around us has already been done. In fact, many of us are completely wrong.
Yes