Doctors worried that there would not be enough vaccine for everyone who needed it.
医生担心没有足够的疫苗给每个需要的人。
Examples from the Corpus
vaccine• Of those, 440,000 received the actualvaccine, and the rest got a placebo.• When Sabin developed his attenuatedstrains of polio he energetically pursued his goal of making them widely accepted as vaccine strains.• a hepatitisvaccine• Several members of the two committees have links with drug companies manufacturingmeningitisvaccines.• There are supplies of smallpoxvaccinesstored in the United States and several other countries.• But the emergence of drug-resistant bacteria has presented a new need for such vaccines, particularly for tuberculosis.• Those at risk are being urged to have the vaccine as soon as possible.• If the vaccine appears safe, tests of its effectiveness will begin in as many as 3,500 people next year.• The vaccine brings hope to 1,300 young children struck down by the Hib form of deadly disease every year.
Originvaccine
(1700-1800)Latinvaccinus“of a cow”, from vacca“cow”; because the substance was originally obtained from sick cows