Unfortunately, that means it's nearly impossible to predict the future of the COVID pandemic.
As evidence mounts that the omicron variant is less deadly than prior COVID-19 strains, one oft-cited explanation is that viruses always evolve to become less virulent over time.The idea that infections tend to become less lethal over time was first proposed by notable bacteriologist Dr. Theobald Smith in the late 1800s. His theory about pathogen evolution was later dubbed the"law of declining virulence.
Some variants, however, have clear"advantages to continued survival, such as those that evade the immune system and spread easily," said Dr. Abir Hussein, associate medical director for infection presentation and control at University of Washington Medical Center. People who are vaccinated or recently infected will have milder symptoms if they experience a breakthrough infection or a reinfection, studies show.
The U.S. Centers for Disease Control and Prevention predict that 22,000 more people could die of COVID-19 over the next two weeks.
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