What causes it?
Most sore throats are caused by an infection, especially viral infections. However, mild soreness or roughness can be caused by singing, shouting or smoking too much, or by smog (combination of smoke due to pollution and fog).

Are all sore throats the same?
Sore throats and/or colds often cause different symptoms in different people. This is because there are many different kinds of bacteria and over 100 strains of viruses, which can cause a sore throat. The symptoms also vary according to an individual's response to an infection, depending, for example, on whether they have had that particular infection before.

Is a sore throat infectious?
Yes, if it is caused by an infection.

What can I do to prevent a sore throat?
Today's hectic pace of life puts our throats under substantial stress, so you may want to follow the advice below to help keep sore throats at bay. Breathe through your nose. Your nose is an excellent filter of bacteria and other harmful irritants and helps warm the air too. Make sure you include plenty of vitamins in your diet. Vitamins can be found in fruits and vegetables and are great for maintaining the immune system.

Wear warm clothes to maintain a constant body temperature when the weather is cold. Layers of clothes are best, allowing you to control your temperature, depending on where you are and what you are doing. Reduce the amount you smoke or are exposed to other people's cigarette smoke.