No COVID spike detected following Halloween, LA County Health reports

Los Angeles County Department of Public Health Director Barbara Ferrer said Thursday that the county has not seen a spike in COVID infections following Halloween, unlike the situation last year when cases began rising sharply. 

She said she is hopeful that residents will continue to exercise caution over the upcoming Thanksgiving holiday.

"We will need to take a cautionary note from what we're currently seeing in other parts of the United States and in other parts of the world right now," Ferrer said. "In the Mountain West and throughout Europe, cases are rising and hospitals are once more flooded with COVID cases, almost all of them among unvaccinated people. These trends remind us that the virus is much more easily transmitted when people are indoors and intermingling without protection from vaccines and other mitigation measures."

People pose for a photo booth picture at the "Halloween Driving Howl" event in Alhambra, California. (Photo by DAVID MCNEW/AFP via Getty Images)

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The county reported another 26 COVID-19 deaths on Thursday, raising the overall virus-related death toll to 26,949. Another 1,088 cases were reported, giving the county a cumulative pandemic total of 1,515,324.

The rolling average daily rate of people testing positive for the virus in the county was 1.1% as of Thursday.

According to state figures, there were 611 COVID-positive patients being treated in county hospitals as of Thursday, down from 616 on Wednesday. Of those hospitalized, 148 were in intensive care, down from 155.

Ferrer said 82% of county residents aged 12 and over have received at least one dose of COVID vaccine, and 73% are fully vaccinated. Of the county's overall population of 10.3 million people, 71% have received at least one dose, and 63% are fully vaccinated.

She said the number of people who received a first dose of vaccine in the past week jumped up sharply, due primarily to the expansion of vaccine availability to include children aged 5-11.

Top COVID hot spots

Communities such as Lancaster, Palmdale, Studio City and Santa Clarita were among the 10 Los Angeles County areas that had the highest rates of new COVID-19 infections during a two-week period that ended Nov. 6, even though most of the areas that made the list have above-average vaccination rates, the county's health director said Thursday.

Of the 10 communities that had the highest rate of new cases, seven had vaccination rates that exceed the countywide rate, according to numbers presented by the Department of Public Health. Health Director Barbara Ferrer said officials are studying the data to determine what is driving higher case rates in the communities, but she insisted the numbers don't mean vaccines aren't effective.

"If you're not vaccinated, you've got a much higher risk of ending up infected, ending up in the hospital and tragically passing away. That's crystal clear and it hasn't really changed for months now," Ferrer said during a media briefing.

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She said current figures show unvaccinated people are nine times more likely than vaccinated people to get infected, and 67 times more likely to be hospitalized.

Ferrer said authorities are trying to examine what factors are in play in individual communities that have above-average vaccination rates but still had among the highest new-case rates.

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The top two communities on the list with the highest new case rates -- Lancaster and Palmdale -- have below-average rates of fully vaccinated residents, at 58% and 66%, respectively. But Studio City, with the third- highest new case rate, has a 79% vaccination rate, and Santa Clarita, placing fourth on the list, has a 75% vaccine rate.

The countywide number of fully vaccinated residents is 73%.

Of the other communities on the top 10 list of highest new-case rates, only Willowbrook, at 62%, falls below the countywide vaccination rate.

"Some of our communities that have right now these higher case rates are in fact communities that have really decent coverage in terms of vaccination ... and they still have a problem with high case rates," Ferrer said.

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