U.S. instances of COVID are once more ticking up from the excessive plateau they’ve sat at many of the yr. Transmission of the virus is “substantial” or “excessive” in practically 75% of U.S. counties, based on the U.S. Facilities for Illness Management and Prevention.
When COVID instances fail to drop into low-level valleys after mountainous peaks, it’s powerful to inform when a brand new wave is beginning. However as instances of as soon as globally dominant BA.5 taper off, new variants just like the BQ household are gaining floor within the U.S. and elsewhere.
Meaning a coming wave of instances, specialists say—or a sustained excessive wall of instances, doubtlessly, if frequent waves of Omicron variants overlap one another.
What signs ought to one look out for? The brief reply: not essentially the identical signs that signaled COVID firstly of the pandemic.
Dropping the power to odor is not widespread amongst COVID sufferers, based on the not too long ago launched Zoe Well being Research, by scientists at Harvard and Stanford universities, along with faculties within the UK.
Researchers examined knowledge submitted by tens of hundreds of members who logged their signs for analysis functions by way of an app. Signs widespread amongst those that’ve been contaminated with the Omicron variant—at present answerable for the overwhelming majority of instances worldwide—who’ve had at the least one dose of vaccine embrace sneezing, sore throat, nasal congestion, persistent cough, and headache, they discovered.
“If you happen to’ve been vaccinated and begin sneezing lots with out an evidence, it is best to get a COVID take a look at, particularly if you’re dwelling or working round people who find themselves at larger threat from the illness,” the authors wrote.
These with Omicron had been far much less more likely to expertise mind fog, eye ache, fever, and headache than those that skilled Delta, based on researchers. As well as, these with Omicron who had been vaccinated had been at a decrease threat of hospitalization and tended to be sick for a shorter period of time, when in comparison with these vaccinated who skilled earlier variants.
Whereas COVID sufferers requiring hospitalization through the Delta wave in late 2021 tended to have pneumonia-like signs, COVID sufferers through the Omicron period extra typically have signs much like the widespread chilly, based on a June article in Infectious Illness Experiences. The 4 generally circulating human coronaviruses other than COVID normally current as widespread colds.
The shift doubtless occurred as a result of the Delta variant tended to thrive within the decrease respiratory system of these contaminated, whereas the Omicron variant, particularly more moderen strains, tends to thrive within the higher respiratory system. That’s topic to vary, nevertheless, because the virus evolves.
It’s unimaginable to say whether or not Omicron is much less extreme than Delta, specialists say, as a result of the general public has continued to construct its immunity. When persons are contaminated or vaccinated, it boosts their immune methods—and whereas antibody immunity lasts only some months, T-cell immunity, which may make infections milder, lasts for for much longer.
It’s potential that COVID is turning into extra akin to the seasonal flu, specialists say, with milder signs and instances which might be extra widespread throughout winter. Nevertheless it’s too early to know, they warning, including that the virus may change course at any level.
At this level within the pandemic, it might be tough to differentiate COVID from the flu or one other respiratory virus. If you happen to’re sick, specialists suggest testing—at-home checks can be found for COVID, after all, physician’s workplaces have speedy checks for the flu, and a few lab corporations provide at-home checks for each. Individuals who take a look at constructive for both can contact their well being care supplier about prescribing an antiviral like Paxlovid for COVID, or Tamiflu for the flu.
Join the Fortune Options e-mail listing so that you don’t miss our greatest options, unique interviews, and investigations.