Hachtel F W, Bailey M S
Am J Public Health (N Y). 1920 Jan;10(1):42-4. doi: 10.2105/ajph.10.1.42.
The members of the community at large are not often sources of diphtheria infection and we must look elsewhere to find the factors of greatest danger. School children do not furnish the source of infection. These investigators point to convalescents and contacts as being the probable distributors of the virulent bacilli.
一般来说，广大社区成员并非白喉感染源，我们必须从其他方面寻找最危险的因素。学童并非感染源。这些研究者指出，康复者和接触者可能是毒性杆菌的传播者。
