According to an analysis by the federal Centers for Disease Control and Prevention published Tuesday (April 6) most children with a serious inflammatory illness linked to the coronavirus had initial COVID-19 infections with no symptoms or only mild ones, new U.S. research shows. (NIAID-RML via AP, File)

According to an analysis by the federal Centers for Disease Control and Prevention published Tuesday (April 6) most children with a serious inflammatory illness linked to the coronavirus had initial COVID-19 infections with no symptoms or only mild ones, new U.S. research shows. (NIAID-RML via AP, File)

Most kids with serious inflammatory illness had mild COVID-19

The post-infection condition tends to be milder in kids who were sicker with COVID-19, although more than half received intensive hospital care

Most children with a serious inflammatory illness linked to the coronavirus had initial COVID-19 infections with no symptoms or only mild ones, new U.S. research shows.

The unusual post-infection condition tends to be milder in kids who were sicker with COVID-19, although more than half of affected youngsters received intensive hospital care, according to an analysis by the federal Centers for Disease Control and Prevention published Tuesday in JAMA Pediatrics.

The study represents the largest analysis to date on U.S. cases of multisystem inflammatory syndrome in children and bolsters evidence that it is a delayed immune response to COVID-19. The study included almost 1,800 cases reported to the CDC from March 2020 through mid-January. Most were in kids younger than 15 but the study included up to age 20.

Upticks in cases have occurred two to five weeks after COVID-19 peaks and have followed spread of initial infections from urban to rural areas, the researchers said. More recent CDC data indicate there’s another emerging peak in the pediatric condition consistent with that trend.

State-reported cases through March 29 totalled 3,185 and included 36 deaths, the CDC’s website shows. State reports aren’t always timely so it is uncertain how many U.S. children developed the illness since the study ended.

Most kids who had COVID-19 don’t develop post-infection illness. Almost 3.5 million U.S. children and teens have tested positive for COVID-19, according to data compiled by the American Academy of Pediatrics and the Children’s Hospital Association.

The condition was first reported in Europe in late winter and spring of last year. Some cases, especially those that follow silent, undiagnosed COVID-19 infections, may be mistaken for Kawasaki disease, a rare condition that can cause red skin, swelling and heart problems.

Dr. Sean O’Leary, vice chairman of the pediatrics academy’s infectious diseases committee, said the inflammatory condition typically causes children to become very sick very quickly, but that most ‘’respond very well to treatment and the vast majority get completely better.’’

Treatments may include steroids and other medicines that can reduce inflammation.

The best way to prevent it is to prevent COVID-19 infections, ‘’which vaccines are very good at doing,’’ he said. COVID-19 vaccine studies in children are underway.

In the CDC analysis, fever was among the most common symptoms. Abdominal pain, vomiting, diarrhea and red skin rash occurred in at least half of affected kids. Almost one-third had heart inflammation or other cardiac involvement. These symptoms were least common among children up to age 4, who were also less likely to require intensive care than older children.

CoronavirusHealth

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Salmon Arm Homes for Rent/Sale Etc. is a popular Facebook page used by those with places for rent and people in need of them. (Lachlan Labere-Salmon Arm Observer)
Carpenter building homes in Salmon Arm unable to find place to rent

Property manager says it’s easier to find work in Salmon Arm than a place to live

Salmon Arm City Hall is closing between noon and 2 p.m. effective April 12, 2021. (File photo)
Pandemic precautions change hours at Salmon Arm city hall

Public will still be able to access services online during two hours when facility closed

A syringe is loaded with COVID-19 vaccine at a vaccination clinic run by Vancouver Coastal Health, in Richmond, B.C., Saturday, April 10, 2021. THE CANADIAN PRESS/Jonathan Hayward
Interior Health announces 89 cases of COVID-19 in the region

Currently, there are 900 active cases in the region

The Red Pill Rapper performs to the crowd gathered for the Rally For Food Security at Blackburn Park on Saturday, April 10, 2021. (Kristal Burgess Photography)
The Red Pill Rapper performs to the crowd gathered for the Rally For Food Security at Blackburn Park on Saturday, April 10, 2021. (Kristal Burgess Photography)
Suspicion of ‘fake news media’ makes rally uncomfortable for Salmon Arm event photographer

More than 300 people counted at city park for ‘Rally For Food Security’

B.C. wineries are open for indoor tasting despite new provincial health regulations. Photo- 
50th Parallel Winery, Instagram.
Indoor wine tastings still allowed in B.C., not considered a ‘social gathering’

“Tasting is really just part of the retail experience. The analogy I use is you wouldn’t buy a pair of pants without trying them on.”

Burnaby MLA Raj Chouhan presides as Speaker of the B.C. legislature, which opened it spring session April 12 with a speech from the throne. THE CANADIAN PRESS
B.C. NDP promises more health care spending, business support in 2021 budget

John Horgan government to ‘carefully return to balanced budgets’

A five-storey, 60-unit building has been proposed for 8709 Jubilee Rd. E., Summerland. The proposal will be the subject of a public hearing on March 22. (Image by GTA Architecture)
Zoning, OCP amendments adopted for Summerland housing development

Council gives final readings for controversial five-storey, 60-unit housing development

A youth was arrested following a car crash on Wallace Street on Saturday, April 10. (Karl Yu/News Bulletin)
Onlookers laugh and jeer as B.C. teen beaten, then forced to strip and walk home

Police arrest older teen, call video shared on social media ‘disturbing’

A lady wears a sticker given out after receiving a COVID-19 vaccine at a clinic in Richmond, B.C., Saturday, April 10, 2021. THE CANADIAN PRESS
B.C.’s COVID-19 case count slows after last week’s peak

3,219 new cases since Friday, 18 additional deaths

North Cowichan councillor Tek Manhas did not violate the municipality’s code of conduct by posting a sexist meme on Facebook, council concludes. (File photo)
B.C. municipality to take no action against councillor who posted sexist meme

Tek Manhas’s meme doesn’t violate North Cowichan council’s code of conduct, municipality concludes

The former Summerland Asset Development Initiative building on Prairie Valley Road in Summerland was suggested as the site for a temporary transitional housing facility for the community. However, Summerland council has rejected this proposal. (John Arendt - Summerland Review)
Summerland council rejects transitional housing facility

Concerns raised about short timeline and condition of municipally-owned building

Shayla, an 8-pound black and grey Havanese, was stolen from outside a store on Banks Road on Saturday. (Contributed)
Stolen pup located, Kelowna RCMP confirms

Mounties said on April 12 that Shayla, the 8-pound, black and grey Havanese dog, has been located safe and sound

Penticton Vees continue their winning streak carrying a 5-0 win title as of Sunday night's hockey action. (Cherie Morgan/Cherie Morgan Photography)
Penticton Vees continue winning streak

Sunday night’s 6-1 win has them with five in a row since the start of the season

Most Read