The result is a cholera vaccine made in Vietnam that costs less than $1 a dose, and that includes delivery and the costs of the overall immunization campaign.
结果在越南生产这种疫苗的成本还不到1美元，而且这1美元当中还包含了运费和免疫宣传费用。
2
As with cholera vaccine, typhoid immunization is not recommended in displaced person situations or following natural disasters. The vaccine requires two shots 1 month apart to be effective.