So far, none of the new variants appears to make people sicker or cause more death.
Generally, it doesn t make sense for a virus to become deadlier because viruses that kill their hosts too quickly can t continue reproducing.
Middle East Respiratory Virus, for instance, which is similar to SARS-CoV-2, kills about one-third of its victims. But after a few scares when it first appeared in 2012-2013, it hasn t spread much beyond Saudi Arabia, where it was first seen.
Virologists were relieved COVID-19 wasn t as deadly but from the start its rapid rate of spread made it dangerous. And the new
New strains of COVID swiftly moving through the US need careful watch, scientists say Karen Weintraub and Elizabeth Weise, USA TODAY
How viruses like COVID-19 mutate, and how they impact vaccine development
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Viruses live – if you can call it that – to replicate themselves. They hijack cells, including our own, and use them to make copies of themselves.
But every time a virus like the one that causes COVID-19 copies itself, as it does millions of times inside each infected person, mistakes can happen. Instead of perfectly copying its 29,811 bases, the four-letter alphabet used to describe its genetic code, a wrong letter sneaks in.
Pfizer and Moderna have been working to increase production and reporting success, but supply will fall short of global demand. Other vaccine companies are lagging on manufacturing.
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With a background spanning business, data and finance, Sam is a radically different kind of marketer – one with a singular focus making businesses better. This background, combined with a unique combination of analytics skills, performance marketing expertise and deep understanding of brand, allow him to challenge the status quo, see hidden opportunities, develop novel strategies and build scalable systems to capitalize on those opportunities.
In his role as VP of Strategy & Analytics, Sam leads Warschawski’s award-winning Digital & Analytics teams in the development, execution and optimization of integrated digital campaigns and measurement strategies. Sam has established a data-driven culture throughout the agency while delivering exceptional bottom-line growth for clients through the fusion of innovative digital strategies with robust, multi-channel marketing campaigns.