Applying of Method of quantitative pharygeal swab culture, created by Keiro Matsumoto, Tsuyoshi Nagatake, Department of International Medicine, Institute of Tropical Medicine, Nagasaki University Japan. The authors examined cultured 250 samples from children aged below five years treated for pneumonia in Thai Binh children hospital from the February 2014 to December 2014. The result shown: 1- Most important bacterial cause is S. pneumonia 38.41 percent
the secondary role belongs to H. influenzae 30.44 percent, and followed by M. catarrhalis 21.74 percent, S. aureus 7.97 percent and Gram negative rods such as P. aeruginosa 0.72 percent, Entero bacter 0.72 percent. 2- Bacteria were tested by Kirby Bauer method and the improved Muller Hinton medium and the sensitivity was measured by SIR system. S. pneumoniae, B. influenzae and M. catarrhalis highly sesitive to imipennem
, Amo+A. c1avulanic, but highly resitant to Co- trimoxazol. Other strain has to be follow up by sensitivity test, individually.