MYNORTHWEST NEWS

BA.5 omicron variant believed to be most contagious strain so far as number of re-infections rise

Jul 11, 2022, 7:17 AM

Photo by John Smith...

Photo by John Smith

Officials are warning people to keep their up their guard as a new COVID-19 omicron variant is spreading through the U.S.

BA.5 is believed to be the most contagious strain to date and the concern is the number of people who are getting re-infected.

In King County, there has been a 21% PCR test positivity in the last seven days.

While the symptoms for BA.5 are often mild, a new study tracked nearly 40,000 people had COVID-19 at least twice and found that each re-infection creates a new opportunity for serious health risks.

Research also showed patients with two or more infections had more than twice the risk of dying compared to patients with just one infection, and three times the risk of being hospitalized. They also face higher odds of getting long COVID-19.

“Some people, when they get infected the first time, that infection may weaken their immune system in a way or produce some organ damage that makes them more vulnerable to having adverse consequences or adverse health risks,” said Dr. Ziyad Al-Aly, clinical epidemiologist at Washington University in St. Louis, Missouri.

At the beginning of June, BA.5 was idling behind with 4.3% of tested samples in Washington, with BA.2 holding a significant lead. In just four weeks, BA.5 has jumped to 34.7% of cases.

Experts said the best way to protect yourself is to get the vaccine and booster shots. The Food and Drug Administration has asked manufacturers to design a booster shot for the fall that targets the newest omicron variant.



MyNorthwest News

Olympia flight airport...

MyNorthwest Staff

Spokane–Olympia flights to begin in January as scheduled service returns after two decades

Olympia Regional Airport is partnering with SeaPort Airlines to launch twice-weekly flights between Spokane and Olympia beginning Jan. 8, 2027.

21 minutes ago

seattle center diwali festival...

Charlie Harger

Harger: Kids danced at Seattle Center’s Diwali festival. 2 men showed up with racist signs

Saturday at the Seattle Center Armory, kids were dancing on stage at Diwali. Then two men walked in with American flags. One sign used a slur for Indian people.

2 hours ago

woodinville house fire...

Jason Sutich

1 dead in Woodinville house fire, another escapes through window

At least one person died in a house fire in Woodinville early Monday morning, and another escaped through a window.

3 hours ago

mountlake terrace dna skull...

KIRO 7 News Staff

Scientists looking to find relatives based off DNA of partial skull found in Mountlake Terrace

Forensic genetic genealogists have processed the DNA of a partial skull found in a home that was sold in Mountlake Terrace in 2025.

4 hours ago

Aberdeen sex offender...

KIRO 7 News Staff

76-year-old Aberdeen sex offender arrested in Internet Crimes Against Children investigation

A 76-year-old in Aberdeen was one of two people arrested in separate Internet Crimes Against Children investigations in Grays Harbor County this past week.

4 hours ago

Diwali seattle center...

Heather Bosch, KIRO 7 News

Diwali celebrations continue despite disruption at Seattle Center

Lawmakers have condemned a video of a protest that has gone viral, showing two people interrupting a Diwali celebration at Seattle Center.

4 hours ago

BA.5 omicron variant believed to be most contagious strain so far as number of re-infections rise