RIO DE JANEIRO, BRAZIL - Ecuador's decision to introduce a mandatory vaccination card for public transport as a measure against Omicron shows once again how authoritarian the new Lasso government really is and how far Ecuador is from being one of the world's knowledge centers.
In a study recently published on the medRxiv* preprint server, the effectiveness of coronavirus disease 2019 (COVID-19) vaccines against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant was studied.
The study . . .
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