The G+C Mo1% of the first strain isolated in China was 37,and the hybridization rate of its DNA with the typical strain (Chicago 2) was 94.6%.

• 我国分离的第一株亲肺军团杆菌血清6型的DNA Mol%25是37；与同型标准株芝加哥2号的杂交率是94.；6%25