Health
BA.4 and BA.5 variants cause an increase in the number of cases and hospitalization
Around this time last year, Oregon was on the cliffs of the Delta Variant wave. This will be the most deadly time for the state across the pandemic in the coming months.
No virus strain has yet matched Delta’s tendency to cause severe illness and death, especially among unvaccinated individuals at the time.
According to the Centers for Disease Control and Prevention, a new subvariant of the COVID-19 Omicron variant (known as BA.4 and BA.5) has emerged as the predominant strain in the United States this week. BA.5 accounts for about 54% of current cases and BA.4 accounts for about 17%.
BA.2.12.1, which has been the predominant strain for several weeks, now accounts for about 27% of cases.
Although not yet reflected in the data, according to the Oregon Department of Health, BA.4 and BA.5 may cause the majority of cases in Oregon as well.
CDC: Wearing a mask indoors on public transport recommended by Oregon counties
However, OHA said the two new subvariants appear to be about 10% more infectious than the previous Omicron subvariants, but so far they have caused more serious illness and death. There are no signs of being infected.This may be due to the strain itself or current high levelss Reduced immunity to COVID-19 from vaccination, previous infection, or both.
Symptoms also largely reflect previous symptoms such as cough, malaise, headache, and muscle aches.
The new COVID-19 forecast released Thursday by the Oregon Health & Science University predicts that hospitalizations will rise slightly from current levels and peak at approximately 480 hospitalizations on July 12.
“Because of the high prevalence of infectious diseases and the low hospitalization rate per infectious disease, a significant proportion of hospitalizations are expected to be accidental.” predict Note.
Here’s what COVID-19 is currently doing in Oregon:
Current case, tendency to be hospitalized
Oregon hospitals are currently treating 423 COVID-19 patients, the highest number since early March. Of them, 59 are in intensive care unit beds, about 10% of the state’s ICU beds. This is more than double the ICU bed with coronavirus patients last week.
The peak of hospitalization occurred during the delta wave last summer and peaked in the slightly shy of 1,200 patients.
According to OHA data, Oregon has averaged about 1,700 new cases of COVID-19 per day since mid-May and has been stable so far.
However, public health authorities rarely report the prevalence of home tests and their results to the state, so raw case data is considered the best indicator for tracking COVID-19 infection trends. It is pointed out that it is not. They said the true number of cases could be four to ten times the reported number.
Better metrics include hospitalization trends and positive test rates. The test positive rate for the two weeks from June 12th to June 25th was 13.6%, up from 12.3% for the previous two weeks. Last week’s data show that the test positive rate is approaching 16%. This is an increase associated with BA.4 and BA.5 variants.
By comparison, the test positive rate peaked at 25% during the Omicron wave this winter.
Since the beginning of June, the average number of deaths per day has been less than 5, but OHSU predicts that it will increase as BA.4 and BA.5 continue to spread.
Vaccination rate
Public health officials say vaccination remains the best way to prevent serious illness and death from the coronavirus, even if the vaccine’s effectiveness in preventing infections diminishes.
According to OHA data, 76.9% of adults in Oregon are fully vaccinated. About 47% of Oregon residents receive booster shots.
The vaccine is available to anyone over the age of 6 months.
masks Recommendations
According to data updated by the CDC on Thursday, people in 14 counties in Oregon are considered at high risk of COVID-19 infection and need to resume wearing masks indoors in public and public transport. there is.
These counties include the three county areas around Portland and the counties along the eastern and southern parts of the state. Marion and Pork counties are considered to be at moderate risk.
“”High risk“” In the county, there have been more than 200 new COVID-19 cases per 100,000 people in the last 7 days, or more than 20 new COVID-19 hospitalizations per 100,000 people in 7 days.
Masking is recommended only in high-risk counties.
OHA advises Oregon citizens to move their events and gatherings outdoors as much as possible.
Reporter Connor Radnovich covers the Oregon Legislature and the State Government.Contact him at [email protected] Or follow him on 503-508-6131, or @ on TwitterCDRadnovich..
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