Encara no tenim significats per a "grown in chicken".
1Afluria, given by injection, is made with inactivated influenza viruses grown in chicken eggs.
2The vaccine is grown in chicken eggs.
3The conventional method of manufacturing a vaccine from viruses grown in chicken eggs takes at least six months.
4Flu vaccines are hard to make because they must be grown in chicken eggs for months, and viruses mutate all the time.
5Flu vaccines are hard to make because they must be grown in chicken eggs for months, and the viruses themselves mutate every year.
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