@DrJohnHhess @lisa_iannattone How did we do after reducing typhoid and cholera exposure?
@JohnHess医生@lisa_iannattone我们在减少伤寒和霍乱暴露后做了什么？
@DrJohnHhess @lisa_iannattone How did we do after reducing typhoid and cholera exposure?
@JohnHess医生@lisa_iannattone我们在减少伤寒和霍乱暴露后做了什么？