L.A. County sees big spike in coronavirus: 2,551 new cases in one day-Los Angeles Times

Microbiology And Virology Background

L.A. County sees big spike in coronavirus: 2,551 new cases in one day

A man sits at a table outside with an iced coffee while a masked shopkeeper paints a window.


Los Angeles County reported its largest single-day total of new coronavirus cases in months as the region races to wrap arms around what officials now say is a new surge of the pandemic.

Public health officials reported 2,551 new infections Wednesday — the highest figure since early March, when the county was shaking off the last vestiges of the fall-and-winter wave.

Wednesday’s report continues a troubling pattern of increased transmission that emerged following the state’s June 15 reopening and coincided with increased circulation of the hypercontagious Delta variant.

“Because of the more infectious Delta variant and the intermingling of unmasked individuals where vaccination status is unknown, unfortunately, we are seeing a surge in cases in L.A. County that looks somewhat similar to last summer,” Public Health Director Barbara Ferrer said. “An important difference this summer is that, with millions of people vaccinated, we are hopeful we will avoid similar increases in deaths.”

Officials have said many of the new infections being confirmed, both in L.A. County and statewide, are among the unvaccinated.

Over the week of July 7 to 14, the average case rate among unvaccinated Californians was 13 per 100,000, according to the state Department of Public Health. The comparable figure among those who had been vaccinated was 2 per 100,000.

But even with roughly 53% of L.A. County fully vaccinated, millions of residents remain vulnerable to the latest resurgence of COVID-19.

Officials have expressed growing alarm over the spread. The countywide test positivity rate now stands at 5.2%. A month ago, it was only 0.7%.

Wednesday’s case count was also 20 times higher than the daily figure recorded a month ago.

The number of COVID-19 hospitalizations has also risen rapidly. On Tuesday, 645 coronavirus-positive patients were receiving that level of care countywide — nearly triple the number seen a month ago.

Daily COVID-19 deaths remain relatively low — at an average of about 4 in L.A. County and 23 statewide, according to data compiled by The Times.

Despite the alarming increases, L.A. County has yet to come close to the harrowing heights seen during the winter surge, when an average of about 15,000 new cases were being reported every day and more than 8,000 COVID-19 patients were hospitalized.

But given the presence of the Delta variant, which is believed to be twice as transmissible as the conventional coronavirus strains, officials have already taken steps to try to rein in transmission — reinstituting a requirement for all residents to wear masks while in indoor public settings, regardless of their vaccination status.

“By adding a mask requirement for everyone indoors, the risk for transmission of the virus will be reduced, and with increases in the number of people getting vaccinated, we should be able to get back to slowing the spread,” Ferrer said in a statement Wednesday.

Officials maintain that those who have been vaccinated have strong protection against the coronavirus, including the Delta variant.

LOS ANGELES, CA - MAY 17: Signage inside Target reads that there is a mask mandate on the first day it has dropped the requirement for fully vaccinated customers, joining with Walmart, Trader Joes, Starbucks, Costco and other businesses in downtown on Monday, May 17, 2021 in Los Angeles, CA. (Dania Maxwell / Los Angeles Times)


Do I need to wear a mask indoors in my community? Rules vary across California

July 21, 2021

L.A. County is far from the only corner of California that is contending with COVID-19’s latest punch.

Over the past week, the state has reported an average of nearly 5,000 new coronavirus cases a day, more than quadruple the number from a month ago, according to data compiled by The Times.

In late June, the state was recording about 6,000 new cases a week, according to a Times analysis. At the peak of the pandemic, the state was recording more than 300,000 new coronavirus cases over a seven-day period.

In light of the increases, one-third of California counties are now urging even fully vaccinated people to wear masks indoors. But L.A. County and the cities of Long Beach and Pasadena — which have their own independent health departments — are the only areas that have said they will mandate it.

Just this week, Santa Barbara, Monterey, Napa, San Benito, Santa Cruz, Ventura, Lake and San Joaquin counties joined the list of those asking even fully vaccinated individuals to wear face coverings as a precaution while inside places including grocery stores, movie theaters and retail outlets.

LOS ANGELES, CA - JULY 17: Visitors to Chinatown wear masks even when outdoors. The LA County mask mandate will go into effect at 11:59 p.m. Saturday, July 17, 2021 requiring masks be worn indoors with the exception that masks can be removed if dining in a restaurant. Photographed in Chinatown on Saturday, July 17, 2021 in Los Angeles, CA. (Myung J. Chun / Los Angeles Times)


California coronavirus hospitalizations hit highest point in months as Delta spreads

July 21, 2021

Officials in most of the Bay Area, as well as Sacramento, Yolo and Fresno counties, also now recommend that people wear masks indoors.

Officials hope that masking up in those areas will slow the spread — but it will take weeks to know for sure. Should those measures prove insufficient, it’s possible more restrictions could become necessary.

At this point, the California Department of Public Health still advises that fully vaccinated residents are allowed to go without face coverings nearly everywhere, though unvaccinated people must still mask up in public indoor spaces.

Los Angeles, CA - July 16: Eon Walk, left, administers a Pfizer-BioNTech vaccine to Elwarder Silas at a mobile COVID-19 vaccine clinic, hosted by Mothers In Action in collaboration with L.A. County Department of Public Health at Mothers in Action on Friday, July 16, 2021 in Los Angeles, CA. (Irfan Khan / Los Angeles Times)

Rare ‘breakthrough’ COVID cases are causing alarm, confusion

July 21, 2021

Even without action from the state, about 60% of Californians now live in a county that either recommends or requires indoor masking for everyone.

Gov. Gavin Newsom has been asked several times this week about the possibility of issuing new state masking guidance or mandates and has consistently responded that he doesn’t believe that step will be necessary — provided sufficient numbers of Californians get their shots.

“The answer to the Delta variant is rather simple: Get vaccinated. We don’t have to have masking if we all got vaccinated,” he told reporters Tuesday.

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