ஒன்றுபட்டது கிஂக்டம் பிரேசிலியன் News Today : Breaking News, Live Updates & Top Stories | Vimarsana
Dr Delić: Zastrašujuće je da pojedini lekari govore negativno o vakcinaciji
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Argentina alcanza un nuevo récord de contagios diarios de coronavirus: 29 472 casos en 24 horas
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Argentina alcanza un nuevo récord de contagios diarios de coronavirus: 29 472 casos en 24 horas
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Milliyet (Турция): если есть С-400, должен быть и «Спутник V»
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The UK announced in December that a more transmissible variant of COVID-19 was spreading in the country, prompting stricter lockdown measures and travel restrictions.
Since then, several other variants have emerged in different parts of the world.
Viruses often change as they make copies of themselves and these changes are called mutations. The World Health Organization (WHO) defines a variant as a virus that has one or several new mutations .
Changes in the coronavirus are not unusual: viruses have more opportunities to mutate as they infect more people but experts have said that SARS-CoV-2 has been slower to change.
Here’s what we know about the coronavirus variants in Britain, South Africa, Brazil and California.