why it is difficult to make vaccines for influenza
Answers
Answered by
2
Answer:
The most common way that flu vaccines are made is using an egg-based manufacturing process that has been used for more than 70 years. ... For flu shots, the influenza viruses for the vaccine are then inactivated (killed), and virus antigen is purified.
Answered by
1
Answer:
Explanation:
FDA regulatory requirements now allow influenza vaccine viruses to be grown in chicken eggs or cells. Today, the majority influenza vaccines are still grown in chicken eggs. Unfortunately, some influenza viruses, like H3N2 viruses, grow poorly in eggs, making it difficult to obtain candidate vaccine viruses.
Similar questions