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 The effectiveness of the different vaccines against SARS-CoV-2 continues to raise concerns, as happened last weekend in Chile, where a controversy arose over the effectiveness of the Sinovac vaccine, with which the government is inoculating the majority of its population. Given the doubts extended to other Latin American countries, in general regarding all vaccines, it is important to understand the characteristics and differences between them. read more read more read more read more read more read more read more read more read more read more In this regard, the German virologist Felix Drexler, from the Berlin Charité, explains to us by groups the types of authorized vaccines that exist so far, how effective they are and against what types of variant they could protect. And also those to come: read more read more read...