opportunistic infection - any infection caused by a microorganism that does not normally cause disease in humans; occurs in persons with abnormally functioning immune systems (as AIDS patients or transplant patients receiving immunosuppressive drugs)
Why your 'flushing' could be a red alert to see your doctor. It is a normal body response that may occur when we are embarrassed, angry, excited, or experiencing other strong emotions. But 'flushing' - when the face, ears, neck and, occasionally, upper chest, take on a red colour, accompanied by a hot feeling - can also be a sign of a more serious underlying condition.
1. to blush or cause to blush. 2. to flow or flood or cause to flow or flood with or as if with water. 3. to glow or shine or cause to glow or shine with a rosy colour. 4. (Building) to send a volume of water quickly through (a pipe, channel, etc) or into (a toilet) for the purpose of cleansing, emptying, etc. 5.