L.A. Public Health recorded 422 single-day COVID-19 cases Wednesday, the highest number of single day cases since May 1 when L.A. County recorded 500.

While L.A. Public Health has called the rise in COVID-19 transmission “concerning” it noted the percentage is still well below the 20% positivity rate Los Angeles County saw at its peak in early January.

“While transmission in L.A. County remains low, L.A. County is seeing increases in cases and daily test positivity,” L.A. Public Health said in a press release, Wednesday. “Public Health continues to caution there is increased risk of COVID-19 infection for people who aren’t fully vaccinated because of increased intermingling and the circulation of more variants of concern like the highly transmissible Delta variant.”

With the increase in COVID-19 transmission, particularly the Delta variant that has shown to be more transmissible, Public Health also urged everyone to wear masks in indoor settings, regardless of vaccination status.

“Public Health strongly recommends people wear masks indoors in settings such as grocery or retail stores; theaters and family entertainment centers, and workplaces when you don’t know everyone’s vaccination status,” the department said Monday. “Until we better understand how and to who the Delta variant is spreading, everyone should focus on maximum protection with minimum interruption to routine as all businesses operate without other restrictions, like physical distancing and capacity limits.”

While fully vaccinated individuals have shown resistance to the Delta variant, Public Health said there have still been mild illnesses reported from vaccinated people who contracted the COVID-19 variant.

The county’s positivity rate has more than doubled from 0.5% at the beginning of the full economic reopening, to the current rate of 1.2%. L.A. County also recorded two single-day COVID-19 deaths, Wednesday, and 255 COVID-19 related hospitalizations.

The most recent vaccination data shows that 87.1% of L.A. County seniors and 67.8% of all L.A. County residents have received at least one dose of the COVID-19 vaccine.

Out of 8.3 million eligible residents, 59% have been fully vaccinated.

“The best protection against COVID-19 is getting vaccinated,” Public Health officials said. “Public Health encourages those that are not vaccinated and are eligible to get vaccinated, to get vaccinated without delay.”

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