Browsing Tag

covid-19 vaccine

Medicine Physician

Menacing New COVID-19 Variant May Reduce Pfizer Vaccine Efficacy

on
February 24, 2021
Reading Time: 3 minutes South African COVID-19 Variant Elicits Weakened Response From Pfizer Vaccine How COVID-19 Variants Come About Since viral particles frequently mutate, treating viral infections like COVID-19 is no simple task. Mutations can produce new variants that are more dangerous and, sometimes, can even render existing vaccines useless. Viral mutations arise from random copying errors that alter […]
Medicine Physician

A Brief Look At COVID-19 Vaccines And How They Work

on
February 17, 2021
Reading Time: 4 minutes Answering Common Questions About the COVID-19 Vaccines What is a Vaccine? A vaccine is a pharmacological agent that is used to prevent viral infection by strengthening the immune system. Unlike bacteria, which are treated with antibiotics, viruses are combated with vaccines, which contain the same elements (be it DNA, RNA, or another antigen) of the […]

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