2 charts show how Omicron symptoms differ from Delta and past coronavirus variants

2 charts show how Omicron symptoms differ from Delta and past coronavirus variants

Omicron, Jorge Moreno

14/1/2022 4:59:00 PM

2 charts show how Omicron symptoms differ from Delta and past coronavirus variants

Vaccinated people with Omicron reported more sore throat s and runny noses, but fewer instances of fever, cough, and loss of taste or smell.

The following chart shows how Omicron symptoms compare to those of its predecessors, based on data collected by the Zoe app.Omicron cases often start with a scratchy sore throat, headache, and congestionMany patients start out with a dry, scratchy throat that causes sharp pain when they swallow.

a December news briefingDr. Carlos Ramirez conducts an examination on Juan Perez, 50, in Oakland, California, on May 12, 2020.relatively rarereported loss of smell

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Omicron much weaker coronavirus variant than Delta, new study says — but some still urge cautionThe Omicron variant of the coronavirus is much less likely to cause hospitalization and death than the earlier Delta variant, a study released by the CDC finds, confirming predictions some virologists have been making since Omicron first appeared in southern Africa.

Omicron less severe than Delta but still poses danger for unvaccinated: WHOThe highly infectious Omicron coronavirus variant causes less severe disease than the Delta strain but it remains a \u0022dangerous virus\u0022, particularly for those who are unvaccinated, the head of the World Health Organization (WHO) said on Wednesday (Jan 12). Speaking at a news briefing, director general Tedro

Omicron much weaker coronavirus variant than Delta, new study says — but some still urge cautionThe Omicron variant of the coronavirus is much less likely to cause hospitalization and death than the earlier Delta variant, a study released by the CDC finds, confirming predictions some virologists have been making since Omicron first appeared in southern Africa.

When am I contagious if infected with omicron?It’s not yet clear, but some early data suggests people might become contagious sooner than with earlier variants — possibly within a day after infection. The U.S. Centers for Disease Control and Prevention says people with the coronavirus are most infectious in the few days before and after symptoms develop. Based on previous data, that means people with omicron could start becoming contagious as soon as a day after infection.

S.African study suggests Omicron less severe even for unvaccinatedUnvaccinated people infected with the Omicron variant of coronavirus may be less prone to severe illness and requiring hospital care or dying than was the case with previous variants, a South African study showed on Friday. Omicron globally has tended to cause less severe disease, and proportionally fewer hospital admissions and deaths, than previous variants. Scientists are trying to determine the extent to which this is because of higher immunity rates engendered by vaccination or past illness, or Omicron is intrinsically less nasty.

EXPLAINER-Why you should still try to avoid catching OmicronA fast-spreading Omicron variant that causes milder illness compared with previous versions of the coronavirus has fueled the view that COVID-19 poses less of a risk than in the past. Research has indicated that Omicron may be more likely to lead to an asymptomatic case of COVID-19 https://www.reuters.com/business/healthcare-pharmaceuticals/south-african-studies-suggest-omicron-has-higher-asymptomatic-carriage-2022-01-11 than prior variants. For those who do have symptoms, a higher proportion experience very mild illness, such as sore throat or runny nose, without the breathing difficulties typical of earlier infections.

a recent video . The Zoe study uses a smartphone app to log how hundreds of thousands of people are feeling every day across the UK. It offers a comprehensive look at how COVID-19 symptoms have changed over the course of the pandemic — most notably, with the advent of the Delta and Omicron variants. The following chart shows how Omicron symptoms compare to those of its predecessors, based on data collected by the Zoe app. Runny nose, headache, fatigue, sneezing, and sore throat were the top five symptoms among people in the UK who recorded a positive COVID-19 test in the past few weeks. Meanwhile, just 44% of people in that group reported a persistent cough and 29% reported a fever. Loss of taste or smell was even less common, as the chart below shows. While the data don't distinguish between vaccinated and unvaccinated people, 70% of the UK population has had at least two vaccine doses as of Thursday. Omicron cases often start with a scratchy sore throat, headache, and congestion Dr. Jorge Moreno said he's seen an influx of COVID-19 cases lately at his outpatient clinic in Connecticut. Most of those patients are vaccinated, he said, so their symptoms tend to be milder and relatively short-lived. Story continues Many patients start out with a dry, scratchy throat that causes sharp pain when they swallow. "It's a very prominent symptom," Moreno, an assistant professor of medicine at Yale School of Medicine, told Insider. "It's not like a little tickle in the throat. If they're reporting it, they're saying that their throat feels raw." Sore throats are often coupled with sinus congestion and headache, he added, followed by a cough a day or so later. At a December news briefing , Ryan Noach, CEO of Discovery Health, South Africa's largest private health insurer, said Omicron patients commonly report a scratchy throat first, followed by nasal congestion, dry cough, and body aches. "Cough is still part of the symptoms, [but] it's not as bad as it was," Moreno said. Vaccinated people, he added, "don't have those respiratory symptoms as much." Dr. Carlos Ramirez conducts an examination on Juan Perez, 50, in Oakland, California, on May 12, 2020. Jessica Christian/The San Francisco Chronicle/Getty Images Loss of smell is also relatively rare among Omicron patients. As of this month, less than 20% of people in the UK who recorded a positive COVID-19 test were logging the symptom into the Zoe app. Back in June, when the Delta variant was dominant in the UK, loss of smell was the sixth most common COVID-19 symptom among fully vaccinated people. In March, before Delta was detected and vaccines were widely available, 60% of UK adults ages 16 to 65 on the Zoe app reported loss of smell at some point in their illness. By contrast, fatigue is becoming more pronounced among outpatients, who often report feeling tired and achy, Moreno said. "I've seen a lot more people reporting fatigue as one of their main symptoms," he said. "They're young people that typically can push through things. They need rest. They need to sleep. They're napping more." Why are COVID-19 symptoms changing? A woman uses a handkerchief in Brandenburg, Germany, on February 27, 2020. Patrick Pleul/Picture Alliance/Getty Images Scientists aren't sure exactly why COVID-19 symptoms are changing. Vaccines help reduce the severity of disease, but Omicron might be a less virulent virus on its own. Two