Mutations could render current Covid vaccines ineffective in a year or less, epidemiologists warn
Mutations of the coronavirus could render current vaccines ineffective within a year, according to a majority of epidemiologists, virologists and infectious disease specialists surveyed by the People’s Vaccine Alliance.
The survey of 77 experts from some of the world’s leading academic institutions across 28 countries found that almost a third gave a time frame of nine months or less. Fewer than 1 in 8 said they believed that mutations would never render the current vaccines ineffective.
Two-thirds thought that we had “a year or less before the virus mutates to the extent that the majority of first-generation vaccines are rendered ineffective and new or modified vaccines are required.”
The survey, published Tuesday, was carried out by the People’s Vaccine Alliance — a coalition of over 50 organizations including African Alliance, Oxfam and UNAIDS — that campaigns for equal global access to Covid vaccines.
The overwhelming majority of the experts — 88% — said that persistent low vaccine coverage in many countries would make it more likely for resistant mutations to appear. The People’s Vaccine Alliance warned that, at the current rate of global vaccination programs, only 10% of people in the majority of poor countries would likely be vaccinated in the next year.
Shots and boosters
A number of Covid vaccines have been developed, tested and authorized for emergency use in the past year. The three vaccines currently in use in the West — from Moderna, Pfizer and BioNTech, and AstraZeneca and the University of Oxford — are being made predominantly in the U.S., U.K. or EU, while China and Russia have developed their own vaccines.
Time is of the essence when it comes to life-saving immunization; the coronavirus pandemic has led to over 127 million Covid infections worldwide and over 2.7 million deaths. The U.S., Brazil, India, France, Russia and the U.K. have been the hardest hit, according to data from Johns Hopkins University.
The spread of more infectious (and in some cases, potentially more deadly) variants of the virus in the latter half of 2020 has made the race to vaccinate as many people as possible a highly charged event. Vaccine developers have already announced that they are developing booster shots to deal with Covid variants that have become more dominant, particularly those first discovered in the U.K., South Africa and Brazil.