The flu and the common cold are both respiratory illnesses but they are caused by different viruses. In general, the flu is worse than the common cold, and symptoms are more common and intense. Colds are usually milder than the flu. People with colds are more likely to have a runny or stuffy nose.
The Flu Is Contagious. Most healthy adults may be able to infect other people beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. Children may pass the virus for longer than 7 days. Symptoms start 1 to 4 days after the virus enters the body.
While the symptoms of influenza B mirrors those of A, the main difference between the two strains is who it can affect. This allows strains of A to be spread more rapidly than B, while also meaning strains of B cannot cause pandemics with symptoms likely less severe. Flu shots protect against both strains of…
A bout of the flu typically lasts one to two weeks, with severe symptoms subsiding in two to three days. However, weakness, fatigue, dry cough, and a reduced ability to exercise can linger for three to seven days.
Common signs and symptoms of the flu include: – Fever over 100.4 F (38 C) – Aching muscles, especially in your back, arms and legs – Chills and sweats – Headache – Dry, persistent cough – Fatigue and weakness – Nasal congestion – Sore throat
This can happen by direct physical contact with someone who has a cold, or by touching a surface contaminated with their germs and then touching your nose or mouth. You can also catch it from infected droplets in the air released by a sneeze or a cough.
Cold symptoms usually start 2 or 3 days after a person has been exposed to the virus. People with colds are most contagious for the first 3 or 4 days after the symptoms begin and can be contagious for up to 3 weeks. Although some colds can linger for as long as 2 weeks, most…
The first sign of a cold is usually a sore or irritated throat and is typically followed by early symptoms such as a headache, chilliness or lethargy. These develop quickly and can last one to two days. During the first few days, your nose may also start to run.