The daily number of COVID-19 cases reported in L.A. County continued growing, according to the latest data, prompting renewed warnings that younger residents are most likely to become infected, and unvaccinated residents are most likely to become severely ill.
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L.A. County Public Health Director Barbara Ferrer on Thursday reported 3,407 new COVID-19 infections, along with nine new virus-related deaths. She said the average daily number of new cases recorded over the past week rose to more than 2,600, up nearly 20% from a week ago.
The county's transmission rate also continues to rise, with the average daily rate at 26 per 100,000 residents, up from 21 just a week ago.
More notably, the 7-day cumulative rate reached 176 per 100,000 residents.
If that number tops 200 per 100,000 residents, it will move L.A. County from the low-transmission rate as defined by the U.S. Centers for Disease Control and Prevention, to a moderate level.
Continued increases could potentially lead to a re-imposition of public health rules, such as indoor mask-wearing.
The rising case rates, however, still have not led to the normally anticipated increase in virus-related hospitalizations or deaths. Those numbers have remained relatively flat in recent weeks while case numbers surged upward.
Ferrer said the county is averaging about four virus-related deaths per day. The number of COVID-positive patients in county hospitals has also remained steady, well below 300 per day.
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As of Thursday, there were 267 virus-positive patients in county hospitals, up from 249 on Wednesday. The number of those patients being treated in intensive care was 25, up from 24 a day earlier.
Ferrer said a variety of factors was likely preventing hospitalization and death numbers from rising, including widespread vaccinations, natural immunity from previous infections and the availability of therapeutics aimed at knocking down infections before they develop into severe illness.
But she said another factor was the relatively low infection rates among the age groups most vulnerable to developing severe illness from COVID-19.
Residents age 80 and older currently have the lowest rate of COVID-19 infection in the county, followed by children below age 5, followed by adults aged 65-79 and adults aged 50-64.
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The highest infection rate is currently among the 12-17 age group, followed by those 18-29 and then 30-49.
Ferrer again noted the increased danger facing unvaccinated residents, saying they are five times more likely to be hospitalized due to COVID-19, and 16 times more likely to die, than their vaccinated counterparts.
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She also pointed to a recent study that determined vaccinations prevented more than 1.5 million infections in California during the first 10 months they were available, along with 72,000 hospitalizations and 19,000 deaths.
Ferrer began her weekly briefing Thursday with a moment of silence, recognizing the United States reaching the grim milestone of 1 million deaths due to COVID-19.
"As we mark the very sad reality of losing millions of people across the world to this dangerous virus, I hope we can move forward in these uncertain times with fortitude, courage and compassion and use the tools at hand to take care of not only ourselves and those we love, but those we know are most vulnerable to suffer from this virus,'' Ferrer said.
The new cases reported Thursday gave the county a cumulative total from throughout the pandemic to 2,903,779. The nine new deaths gave the county an overall virus-related death toll of 32,016.
The average daily rate of people testing positive for the virus in the county was 2.6% as of Thursday, up slightly from 2.4% on Wednesday.
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