The longer the virus is allowed to swirl around, the easier it becomes for new variants to come along. Any new variant might be milder and/or less transmissible, or it maybe it could lead to worse affects and/or greater transmissibility.
Eg
Quote:
Vietnam has detected a Covid variant that appears to be a combination of the Indian and UK variants and can spread quickly by air, officials say.
...
Mr Nguyen said the new hybrid variant was more transmissible than previously known versions, especially in the air. He said it was discovered after running tests on newly-detected patients, online newspaper VnExpress reported.
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