Changing the strains used in the vaccines is crucial to the effectiveness of the dose, as the virus adapts and mutates, Anvisa stated.
São Paulo’s Butantan Institute is exporting doses of the trivalent shot to Bolivia, Colombia, Cuba, Nicaragua, and Uruguay. The 5.4 million doses started being delivered late in March.
Influenza A is behind 24.6% of SARS-linked hospitalizations, while the novel coronavirus is linked to 26.4%. SARS-CoV-2 is also still number one among fatal SARS cases.
The production of supplies must be adjusted accordingly. “[The change] is vital for the efficiency of the inoculation, as viruses mutate,” regulator Anvisa stated.
Severe acute respiratory syndrome may be caused by SARS-CoV-2 and has been monitored as a parameter to track the COVID-19 pandemic in Brazil since 2020.
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