At the same time, some countries want to show their supremacy in
pharma in producing the vaccine for the virus as early as possible and make the
money. We heard about successful vaccine stories till now like Modrena,
Astrazenca, Pfizer and Bharat Biotech to counter covid-19. But there are some failures
also exist in the world.
Pharma companies across the world raced
against time to produce effective vaccine against pandemic virus. Still some
vaccines are in trial stage. GSK/Sanofi vaccine developed by French and British
GlaxoSmithKline failed to overcome the R&D phase. GSK/Sanofi has failed to
produce a strong immune response among the people over the age of 60. This
causes delay in roll out the GSK/Sanofi into the market. US pharma candidate
Merck has pulled the plug on two of its coronavirus vaccines.
As per health experts from Merck, two
vaccine candidates failed to trigger an immune response and that forced them out
of vaccine race. Initially, Merck emerged as strong competitor to Pfizer and
Moderna later it had failed not only in producing the vaccine in quick time but
also in efficacy as well. Australia pinned hopes on its indigenous vaccine with
Queensland university vaccine. But the vaccine failed as recipients of the
vaccine tested positive for HIV after getting the first shot. Vaccine contained
parts of HIV protein that led to positive results. Modrena and Pfizer have
allergic complaints and nausea after getting first shot but not severe like Queensland
university vaccine.
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