New data from the California Department of Public Health shows the positivity rate in the state is 9.7% -- the highest it's been in months.
That number is more than four times what it was two weeks ago. On December 15, the state positivity rate was 2.3%.
Covid-19 cases are rising rapidly in California.— Liz Kreutz (@ABCLiz) December 29, 2021
The state's 7-day test positivity rate has more than *quadrupled* in just the last two weeks.
Per @CAPublicHealth, the current 7-day positivity rate is 9.7%.
On December 15th, it was 2.3%.
"If you're like me, you're getting calls from friends and relatives more than you ever have over the past two years about, 'I got it. I was exposed to it. What do I do?'" Dr. Bob Wachter, the chair of UCSF's Department of Medicine, told ABC7 News. "And that's even in vaccinated people, so it is clear that we're going to see a lot of cases."
The @SF_DPH says San Francisco’s case rate tripled from 91 cases to more than 273 cases in the 7 days ending on December 20th.— Liz Kreutz (@ABCLiz) December 29, 2021
And they say cases are rising three times faster than during the summer Delta surge.
Every county in the Bay Area is seeing a surge.
In San Francisco, a spokesperson for the San Francisco Department of Public Health said cases are rising three times faster than during the summer delta-fueled surge. In the 7-days ending on December 20, the case rate tripled from 91 cases to more than 273 cases.
Currently, there's an average of more than 300 cases per day.
RELATED: Bay Area counties report record-breaking number of daily, weekly COVID cases
"On Christmas day, and gatherings that occurred just before Christmas, have yielded another surge on top of the surge we're already seeing," Marin County Public Health Director Dr. Matt Willis told ABC7 News.
Dr. Willis said he expects Marin County to hit a record for cases in the county.
"This morning we found 300 new cases in the cue that had accumulated yesterday afternoon through the night," Dr. Willis said. "We're on track for another record setting day in terms of case numbers."
There are some silver linings. Despite the rising cases, hospitalizations remain low. Marin County has just four people in the hospital despite rising cases.
RELATED: Is it COVID, a cold or the flu? Here are a few easy ways to tell
Transmission is also much lower among those who are vaccinated.
In this graph from Marin County, the blue shows transmission among vaccinated people and the orange shows transmission among unvaccinated people.
The same with this graph from Alameda County. The blue line is vaccinated people and the yellow line is unvaccinated people.
Good news for vaccinated people: The virus is spreading must less rapidly among people who have been vaccinated.— Liz Kreutz (@ABCLiz) December 29, 2021
These two graphs from Marin County and Alameda County show the difference in spread between vaccinated and unvaccinated people. pic.twitter.com/KsMjzBH6dI
"It does seem like the main thing that protects people is the level of immunity they have," Dr. Wachter said. "And it looks, so far, that with omicron you're going to see a lot of cases and a lot of illness, but if you've had two shots and particularly three shots, you have a very high level of protection to prevent you from needing to go to the hospital and getting very sick and dying."
VACCINE TRACKER: How California is doing, when you can get a coronavirus vaccine
Having trouble loading the tracker above? Click here to open it in a new window.
RELATED STORIES & VIDEOS:
- Map shows everywhere you can get a COVID-19 test in the Bay Area
- COVID's surge, omicron's threat, boosters' protection: What to know about next chapter in pandemic
- What to know about breakthrough COVID infections as cases among vaccinated rise
- California's indoor mask mandate: A Bay Area guide to changes in your county
- How severe is omicron? Expert says variant's 50 mutations could be its downfall
- Is it COVID, a cold or the flu? Here are a few easy ways to tell
- Here's everything you need to know about COVID-19 booster shots
- How to show proof of vaccination in San Francisco or anywhere in California
- Should vaccinated people get tested if exposed to COVID-19? CDC explains
- Can a breakthrough infection still lead to long haul COVID-19? San Francisco doctor explains
- Data tracker: Coronavirus cases, deaths, hospitalizations in every Bay Area county
- Get the latest updates on California EDD, stimulus checks, unemployment benefits
- Coronavirus origin: Where did COVID-19 come from?
- What is a COVID-19 genetic, antigen and antibody test?
- What does COVID-19 do to your body and why does it spread so easily?
- Coronavirus Timeline: Tracking major moments of COVID-19 pandemic in San Francisco Bay Area