 Health care facilities have not been defined in Taiwan. Respiratory care ward RCW is a special unit to take care long-term ventilatory dependent patients in Taiwan. Some of the patients get pneumonia and are referred back to medical centers. Besides, community-acquired P. aeruginosa, Acinetobacter baumannii or MRSA have been reported 3-8. Therefore, the core-organisms of HCAP in Taiwan might be multi-drug resistant and the causes of inadequate initial antibiotics treatment. The common pathogens were also unknown. 