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The most common symptoms may have changed from the most common symptoms previously associated with standard COVID-19. Infected people may mistake the symptoms for a bad cold and not realize they need to isolate. Common symptoms reported have been headaches, sore throat, a runny nose or a fever. [1] [medical citation needed] [2]
A study of samples collected in Manaus between November 2020 and January 2021, indicated that the Gamma variant is 1.4–2.2 times more transmissible and was shown to be capable of evading 25–61% of inherited immunity from previous coronavirus diseases, leading to the possibility of reinfection after recovery from an earlier COVID-19 ...
The potentially deadly and fast-spreading coronavirus has been mutating to become even more contagious, according to new research. ... almost every genetic sample contained a mutation on the virus ...
Throughout the COVID-19 pandemic, the genome of SARS-CoV-2 viruses has been sequenced many times, resulting in identification of thousands of distinct variants. In a World Health Organization analysis from July 2020, ORF1ab was the most frequently mutated gene, followed by the S gene encoding the spike protein .
The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that ...
India said on Wednesday it has found around 40 cases of the Delta coronavirus variant carrying a mutation that appears to make it more transmissible, and advised states to increase testing.
Here's what experts are saying about those findings and how they might affect the COVID-19 pandemic and efforts to develop vaccines and treatments.
In France, it made up about 15% of COVID-19 cases in December, but around 27 December it had increased to more than 60%. [343] [344] Researchers recommend sampling at least 5% of COVID-19 patient samples in order to detect Omicron or other emerging variants. [345]