Investigated Influenza A/H1N1 cases have occurred in the troop movements and difficult living conditions with the highest levels of contamination Institute of Logistics, Army Officers and 7-9 months is the time outbreak most aggressive. The thread was conducted using techniques and equipment RT-PCR sequencing of the genome of the sample H1, with a high degree of similarity and differences found point to the' fragments of the international race, The results indicate that the strain circulating in Vietnam not only from a strain derived from only one of the many different strains of the world. Decoding the other gene segments of influenza virus A/H1N1 for analysis compared with strains in Vietnam and in the world to have an assessment of genetic variation of influenza virus A/H1N1 and current vaccine production.