Do COVID-19 vaccines protect against variants? Also, what is a variant?

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Dr. Seema Yasmin

Dr. Seema Yasmin answers your questions about the COVID-19 vaccine and coronavirus variants: Should I get a COVID-19 vaccine if there are new variants? What is a variant? Are COVID-19 vaccines effective against new variants? Should I wait to get a COVID-19 vaccine while the variants are being studied?