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Covid-19 Variants

Horizontales
Numerous variants of the virus are being _____ (monitored) in the US and globally.
Sometimes new variants emerge and then _____ (vanish), other times they persist.
Fully vaccinated people get breakthrough _____ less often than unvaccinated people.
Unvaccinated people are at greatest _____ of transmission.
Current vaccines are expected to _____ against severe illness.
The virus that causes Covid-19 is constantly _____ and new variants occur.
Verticales
The Omicron variant is causing a _____ (sudden rise) of Covid-19 cases.
The emergence of Omicron emphasizes the importance of ______ and boosters.
Omicron _____ (travels) more easily than the original virus.
As the variant spreads it may be more _____ to stop.
Some variations make the virus _____ (unaffected) to treatments or vaccines.
Variants are due to changes in genetic _____ (mutations).