Researchers find dominant coronavirus strain in Arizona
Researchers in Flagstaff have identified a coronavirus mutation that's affecting thousands of Arizonans right now.
Scientists at TGen are looking at how the novel coronavirus is mutating in Arizona. "We look at these changes, these mutations in the genomes that tell us maybe the story is changing a little bit," said Dr. David Engelthaler.
Dr. Engelthaler heads researchers at TGen's infectious disease branch in Flagstaff. A sample gets sent there from every positive COVID-19 test in Arizona. Dr. Engelthaler said one strain, D614G is in 90% of all cases in the state.
Initially, it mutated in Europe, and this strain he said is more contagious, but it's too early to tell how severe it is.
"We don't know what's causing it to be less severe, although we are seeing drops in fatality rates," said Dr. Engelthaler. "That's the good news; the bad news is that we are still seeing a large number of fatalities, we can't forget how deadly this virus is and who's most at risk."
Strain of COVID-19 that may spread more, be less deadly linked to most of Arizona's cases
PHOENIX — Scientists are finding a particular strain of COVID-19 is likely more easily spread from person-to-person and might be less deadly. Arizona researchers say many of the cases in the state are linked to it.
“The story of this virus is really written in the genome and those mutations can act like plot twists,” Dr. David Engelthaler, director of TGen North, said.
The mutation is called D614G, and unlike strains out of China, it appears to spread more easily.
“Which seems to have, you know, in many cases, cause really large outbreaks,” Engelthaler said.
Engelthaler said the virus appears to be trying to adapt to its host: people.
“Hopefully this virus is starting to act like other human coronaviruses, maybe it becomes more transmissible, but maybe less virulent and less deadly,” Engelthaler said.
While Arizona has been experiencing a surge in COVID-19 cases, Engelthaler said it’s too early to tell if the D614G is impacting the increased cases.
“It’s probably too early to say all the cases, the large increase of cases that we’re having in Arizona, has to do with specific mutations that are occurring,” Engelthaler said.