Recently, Chi Bo, 74 years old, returned from a trip to other places and began to suffer from repeated high fever and coughing. He thought it was due to travel fatigue. However, the situation was getting worse and worse, and he even had difficulty breathing and was dying... His family sent Chi Bo to the hospital in time. It was confirmed that he was suffering from Legionella pneumophila pneumonia. Fortunately, after timely and accurate treatment, Chi Bo has now turned the corner and been discharged successfully. Doctors remind that recently, the hot weather and high ambient humidity have provided excellent opportunities for the reproduction of various bacteria, including Legionella pneumophila. In addition, this Legionella is easy to appear in places where citizens can cool down, such as swimming pools, air-conditioned rooms, etc., and it is particularly alarming because of its strong virulence and high risk of death. Why did the "latent killer" almost get killed during a summer trip? Feng Dingyun, Associate Chief Physician of the Department of Respiratory and Critical Care Medicine of the Third Affiliated Hospital of Sun Yat-sen University, combined with the medical history and a series of examinations and analysis, it is very likely that Chi Bo accidentally inhaled Legionella pneumophila on the way to travel. In addition, he had chronic obstructive pulmonary disease and other basic diseases, which led to more serious symptoms. "This Legionella likes to live and breed in warm water and humid and hot places, so it is easy to appear in hot springs, swimming pools, shower heads, air conditioning cooling towers, sewers and other places. The main route of infection is to inhale aerosols or aerosols containing Legionella pneumophila through the human respiratory tract." Feng Dingyun said that compared with general pneumonia, Legionella pneumophila pneumonia symptoms have repeated high fever (often reaching 39 ℃ -40 ℃), Accompanied by chills, fatigue, muscle soreness or headaches, general discomfort, and symptoms such as coughing, expectoration, and even breathing difficulties, more severe cases can also lead to shock or even death. Is it useful to take cephalosporins after infection? "After infection with Legionella pneumophila, the use of cephalosporins or penicillin antibiotics has no effect." Feng Dingyun said that at present, the more convenient and effective drugs are quinolones, that is, salmones (such as Levofloxacin, Moxifloxacin, etc.), Macrolide (such as Azithromycin, Roxithromycin, Clarithromycin, etc.). In addition, Rifampicin, sulfa, etc. are also generally effective. Experts particularly remind that each drug has certain contraindications, and it is necessary to analyze the specific situation of the patient before determining the medication. It is not recommended for citizens to use it without authorization or blindly, and it must be diagnosed by a doctor before use. How to prevent infection with Legionella pneumophila? Feng Dingyun suggests that when using air conditioning in daily life, it is necessary to regularly open windows for ventilation and maintain fresh indoor air. At the same time, air conditioning filters and shower heads should be cleaned and disinfected in time. Units with conditions can also detect Legionella pneumophila in the environment and water sources for timely detection and treatment. In addition, don't forget to "combine work and rest to strengthen the body", especially for people with chronic diseases or low immunity, so as to prevent Legionella pneumophila from "rushing in". (Reporter Liu Xinyu, Correspondent Zhou Jin'an)