Conclusion The strains bought from America ATCC company were their respective genotypes, but there were marked differences among them in the increase of infection ratio.

• 结论从ATCC购买的标准株分型后均为正确的型别，但不同型之间感染率增长的差异明显，为理解沙眼衣原体不同型别致病性的不同提供了一定的理论依据。