Pneumonia is a lung infection caused by bacteria, viruses, fungi, or tuberculosis. Symptoms include fever, cough, chest pain, and shortness of breath. Early diagnosis and treatment are crucial to ...
Treatment may depend on the cause ... leading to a sinus infection. Sinusitis is usually caused by a virus and often lasts even after other upper respiratory symptoms are gone.
HIV is a virus that attacks the immune system. It can transmit through sexual contact and some other means. HIV makes a person more prone to certain other infections. Without treatment ...