Flu mutation study suggests universal flu vaccine may be even more challenging than expected
![2020 universal flu vaccine Wilson](https://globalhealth.scripps.edu/wp-content/uploads/2020/07/2020_influenza_Wilson_universal_vaccine.jpg)
Many flu strains may be capable of mutating to escape universal-vaccine antibodies. LA JOLLA, CA—Some…
Anna AndersenJune 23, 2020