بررسی سراتیا و سودوموناس در عفونت های بیمارستانی

Hospital acquired infection have 2 origins: 1) Infections acquired from the hospitalization. 2) Infections that transmit from hospital personnel and those who referred to a hospital. According to the studies approximately half of hospital acquired infection is under the first group. Gram-negative bacilli is of prime importance from all bacteries that caused hospital acquired infection. There are 3 main ways spreading hospital acquired infections include: 1) Auto infections 2) Transmit infections 3-environmental infections. In addition, three following factor's will help to cause hospital acquired infections. 1) Reduced immunologic defenses in patient. 2) Local reducing of immunologic defense. 3) Hospital pathogens. From 7/7/1367 to 30/3/1368 samples from patients were collected from 4 hospitals. Then with use of microbiological methods, identified pathogenic organisms