Coronaviruses are a group of viruses known for causing the common cold. They have a halo or crown-like (corona) appearance when viewed under an electron microscope. The common cold is an …

The common cold is an upper respiratory infection that affects your nose, throat, sinuses and windpipe. Colds usually go away on their own within a week to 10 days.

Oct 15, 2024 · Learn about the common cold, its causes and spread, signs and symptoms and ways to prevent it.

May 24, 2023 · In adults or children, a common cold that lasts a while can lead to swelling and pain in the sinuses. These are air-filled spaces in the skull above the eyes and around the nose.

Aug 5, 2025 · While you might be familiar with the common cold, there are some things to know about this condition that can help you feel better, avoid future colds, and reduce the spread of a virus.

The common cold most often causes a runny nose, nasal congestion, and sneezing. You may also have a sore throat, cough, headache, or other symptoms.

Dec 9, 2025 · Learn about the different types of colds, their symptoms, and how to manage each variation effectively. Stay informed and feel better fast.

May 6, 2025 · A cold begins when a virus attaches to the lining of your nose or throat. Your immune system -- the body's defense against germs -- sends out white blood cells to attack this invader.

Dec 15, 2025 · After exposure, cold symptoms usually start within one to three days, and last about a week. Learn more about how long cold symptoms last.

Definition The common cold most often causes a runny nose, nasal congestion, and sneezing. You may also have a sore throat, cough, headache, or other symptoms.