Merck scraps COVID-19 vaccines that produced ‘inferior’ immune response. This makes us wonder how useful or useless the other vaccines are? Time will tell.
Early-stage studies found that Merck’s two experimental shots produced immune responses that were “inferior” to those generated by other COVID-19 vaccines, the company said.
The vaccine candidates also provoked immune responses weaker than those seen after someone is naturally infected with the virus even though the shots were “generally well tolerated,” according to a Merck news release.
