US lacks back-up for flu vaccine shortfall.
Pearson
Helen
H
D000818:Animals; D002645:Chickens / Q000821:virology; D004345:Drug Industry / Q000191:economics / Q000592:standards; D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000096:biosynthesis / Q000191:economics / Q000592:standards* / Q000600:supply & distribution*; D010063:Ovum / Q000821:virology; D011634:Public Health; D013997:Time Factors; D006113:United Kingdom; D014481:United States
D007252:Influenza Vaccines