NOTE: The information below is not the latest. TAP HERE for today’s latest information.
By Roger Straw, Thursday, May 5, 2022
Solano County reports 262 new COVID infections and 30 new hospitalizations. (Tap here for hospitalizations.) Benicia and Solano County continue in HIGH rate of transmission.
Solano Public Health COVID dashboard, Thursday, May 5, 2022:
DEATHS: Solano reported no new COVID-related deaths in today’s report. Solano has reported 3 deaths so far in May. COMPARE:COVID deaths reported in Solano County this year: 30 in January, 15 in February, 17 in March, 7 in April. A total of 423 Solano residents have now died of COVID or COVID-related causes over the course of the pandemic.
TRANSMISSION RATE: With today’s report, Solano continues to experience a HIGH rate of transmission, with 618 new cases in the last 7 days (down slightly from 623 at last report). CDC FORMULA: Based on Solano County’s population, 450 or more cases in 7 days places Solano in the CDC’s population-based definition of a HIGH transmission rate. Below 225 cases in 7 days shows MODERATE community transmission. Numbers between 225 and 450 are considered SUBSTANTIAL transmission.
ACTIVE CASES: Solano reported 798 ACTIVE cases today, up from 700 at last report.
CASES BY CITY – Thursday, May 5, 2022:
BENICIA added 17 new cases today, a total of 3,277 cases since the outbreak began.TRANSMISSION RATE: Benicia has reported 39 new cases in the last 7 days, continuing in the CDC’s HIGH rate of transmission. For a city with Benicia’s population, anything over 27 cases in 7 days is considered HIGH TRANSMISSION. 14 to 27 cases is considered SUBSTANTIAL. Below 14 is rated MODERATE.
Dixon added 5 new cases today, total of 4,400 cases.
Fairfield added65 new cases today, total of 23,139 cases.
Rio Vista added 3 new cases today, total of 1,205 cases.
Suisun Cityadded21 new cases today, total of 6,081 cases.
Vacaville added 65 new cases today, a total of 21,990 cases.
Vallejoadded86 new cases today, a total of 26,114 cases.
Unincorporatedadded 0 new cases today, a total of 201 cases.
TEST RATE: Solano County’s 7-Day Percent Positive TEST RATE was 12% today, up from 11% at last report. >> Solano Public Health announced that beginning on May 16, it will no longer report numbers of residents tested and the County’s 7-day positive test rate. >>With so many home-tests, I agree that these numbers are no longer reliable, but they do give the public helpful information when compared to similar numbers for the state and nation. COMPARE: The CALIFORNIA 7-day % positive rate was (unavailable) today, 2.2% at last report. [Source: Johns Hopkins Coronavirus Tracking Center]. The U.S. 7-day % positive rate was 8.7%. today, up from 7.3% at last report. [Source: CDC COVID Data Tracker.]
HOSPITALIZATIONS:
CURRENT: Solano reported the number of those currently hospitalized with COVID fell today from 16 persons at last report to 9. Current hospitalizations don’t tell the whole story, though. Only from the increase in total hospitalizations by age and race (below) can we know how many new admissions have come into our hospitals as of this date.
TOTAL hospitalizations: Solano County’s recent and total hospitalizations must be independently discovered in the County’s occasional update of hospitalizations by Age Group and by Race/Ethnicity. Solano updated its Age and Race charts today, adding 30 previously unreported hospitalizations, for a pandemic total of 4,420. Note below that over half of these new hospitalizations are age 65+, a group that is only 17% of total Solano population.TREND: Solano reported 284 hospitalizations in January, 184 in February, 644 in March, and 53 in April, and these 30 so far in May. (NOTE: The County often updates age/race hospitalization data long after the fact, which probably accounts for the huge increase reported in March. Also note that the County’s hospitalization numbers for Race/Ethnicity are less accurate, but presented here to show relative percentages.)
ICU Bed Availability Solano County reported available hospital beds rose today, from 35% at last report to 56% today, within the County’s GREEN safe zone.
Ventilator Availability in Solano County fell today from 84% to 78% available, in the County’s GREEN safe zone.
>The data on this page is from the Solano County COVID-19 Dashboard. The Dashboard is full of much more information and (as of 3/14/2022) is updated Monday and Thursday between 4 and 6pm. On the County’s dashboard, you can hover a mouse or click on an item for more information. Note the tabs at top for “Summary, Demographics” and “Vaccines.” Click here to go to today’s Solano County Dashboard.
See also my BENINDY ARCHIVE of daily Solano COVID updates (an excel spreadsheet). I have also archived the hundreds of full CORONAVIRUS REPORTS posted here almost daily on the Benicia Independent since April 2020.
NOTE: The information below is not the latest. TAP HERE for today’s latest information.
By Roger Straw, Monday, May 2, 2022
Solano County reports 356 new COVID infections and 3 new deaths. Benicia and Solano County continue in HIGH rate of transmission.
Solano Public Health COVID dashboard, Monday, May 2, 2022:
DEATHS: Solano reported three new COVID-related deaths in today’s report, all age 65+. Solano has reported 3 deaths so far in May. COMPARE BELOW:COVID deaths reported in Solano County this year: 30 in January, 15 in February, 17 in March, and 7 in April. A total of 423 Solano residents have now died of COVID or COVID-related causes over the course of the pandemic.
TRANSMISSION RATE: With today’s report, Solano continues to experience a HIGH rate of transmission, with 623 new cases in the last 7 days (up from 527 at last report). CDC FORMULA: Based on Solano County’s population, 450 or more cases in 7 days places Solano in the CDC’s population-based definition of a HIGH transmission rate. Below 225 cases in 7 days shows MODERATE community transmission. Numbers between 225 and 450 are considered SUBSTANTIAL transmission.
ACTIVE CASES: Solano reported 700 ACTIVE cases today, up from 621 at last report.
CASES BY CITY – Monday, May 2, 2022:
BENICIA added 22 new cases today, a total of 3,260 cases since the outbreak began.TRANSMISSION RATE: Benicia has reported 52 new cases in the last 7 days, continuing in the CDC’s HIGH rate of transmission. For a city with Benicia’s population, anything over 27 cases in 7 days is considered HIGH TRANSMISSION. 14 to 27 cases is considered SUBSTANTIAL. Below 14 is rated MODERATE.
Dixon added 11 new cases today, total of 4,395 cases.
Fairfield added102 new cases today, total of 23,074 cases.
Rio Vista added 3 new cases today, total of 1,202 cases.
Suisun Cityadded28 new cases today, total of 6,060 cases.
Vacaville added 62 new cases today, a total of 21,925 cases.
Vallejoadded127 new cases today, a total of 26,028 cases.
Unincorporatedadded 1 new case today, a total of 201 cases.
TEST RATE: Solano County’s 7-Day Percent Positive TEST RATE was 11% today, up from 10% at last report. Solano Public Health announced today that beginning on May 16, it will no longer report numbers of residents tested and the County’s 7-day positive test rate. With so many home-tests, I agree that these numbers are no longer reliable, but they do give the public helpful information when compared to similar numbers for the state and nation. COMPARE: The CALIFORNIA 7-day % positive rate was 2.2% today, down from 2.7% at last report. [Source: Johns Hopkins Coronavirus Tracking Center]. The U.S. 7-day % positive rate was 7.3%. today, up from 6.1% at last report. [Source: CDC COVID Data Tracker.]
HOSPITALIZATIONS:
CURRENT: Solano reported the number of those currently hospitalized with COVID doubled today from 8 persons at last report to 16. The County did not update its Age, Race/Ethnicity hospitalization charts today. TREND: Solano reported 284 hospitalizations in January, 184 in February, 644 in March, and 53 in April. (The County often updates age/race hospitalization data long after the fact, which probably accounts for the huge increase reported in March.)
Currently hospitalized in Solano Apr ’20 – current. Note recent upswing. (Tap image to enlarge.)
ICU Bed Availability Solano County reported available hospital beds rose slightly today, from 32% at last report to 35% today, still just within the County’s GREEN safe zone.
Ventilator Availability in Solano County also rose dramatically today from 64% to 84% available, in the County’s GREEN safe zone.
>The data on this page is from the Solano County COVID-19 Dashboard. The Dashboard is full of much more information and (as of 3/14/2022) is updated Monday and Thursday between 4 and 6pm. On the County’s dashboard, you can hover a mouse or click on an item for more information. Note the tabs at top for “Summary, Demographics” and “Vaccines.” Click here to go to today’s Solano County Dashboard.
See also my BENINDY ARCHIVE of daily Solano COVID updates (an excel spreadsheet). I have also archived the hundreds of full CORONAVIRUS REPORTS posted here almost daily on the Benicia Independent since April 2020.
Coronavirus testing sites remain in business more than two years after the pathogen emerged. A medical worker administers tests April 18 in New York. (Spencer Platt/Getty Images)Washington Post, By Joel Achenbach, May 1, 2022
During those terrifying early days of the pandemic, scientists offered one piece of reassuring news about the novel coronavirus: It mutated slowly. The earliest mutations did not appear to be consequential. A vaccine, if and when it was invented, might not need regular updating over time.
This proved overly optimistic.
The coronavirus, SARS-CoV-2, has had billions of chances to reconfigure itself as it has spread across the planet, and it continues to evolve, generating new variants and subvariants at a clip that has kept scientists on their toes. Two-and-a-half years after it first spilled into humans, the virus has repeatedly changed its structure and chemistry in ways that confound efforts to bring it fully under control.
And it’s not showing signs of settling down into a drowsy old age. Even with all the changes so far, it still has abundant evolutionary space to explore, according to virologists who are tracking it closely. What that means in practical terms is that a virus that’s already extremely contagious could become even more so.
“This virus has probably got tricks we haven’t seen yet,” virologist Robert F. Garry of Tulane University said. “We know it’s probably not quite as infectious as measles yet, but it’s creeping up there, for sure.”
The latest member of the rogue’s gallery of variants and subvariants is the ungainly named BA.2.12.1, part of the omicron gang. Preliminary research suggests it is about 25 percent more transmissible than the BA.2 subvariant that is currently dominant nationally, according to the Centers for Disease Control and Prevention. The CDC said the subvariant has rapidly spread in the Northeast in particular, where it accounts for the majority of new infections.
“We have a very, very contagious variant out there. It is going to be hard to ensure that no one gets covid in America. That’s not even a policy goal,” President Biden’s new covid-19 coordinator, Ashish Jha, said in his inaugural news briefing Tuesday.
He was answering a question about Vice President Harris, who recently tested positive for the virus and went into isolation. Harris had recently been boosted for the second time — her fourth shot of vaccine.
Her case highlights what has become painfully obvious in recent months: No amount of vaccination or boosting can create a perfect shield against infection from SARS-CoV-2. What the vaccines do very well, however, is greatly reduce the risk of severe illness. That is hugely consequential as a matter of public health, as is the wider use of therapeutics, such as the antiviral Paxlovid.
The vaccines currently deployed were all based on the genomic sequence of the original strain of the virus that spread in late 2019 in Wuhan, China. They essentially mimic the spike protein of that version of the virus and trigger an immune response that is protective when the real virus shows up.
But the variants that have emerged can evade many of the neutralizing antibodies that are the immune system’s front line of defense.
“It’s evolving at a fairly rapid rate,” said Jesse Bloom, a computational biologist at the Fred Hutchinson Cancer Research Center in Seattle. “I do think we need to aggressively consider whether we should update vaccines, and do it soon.”
Vaccines have reduced the virus’s worst effects. Community of Hope clinical nurse manager Imani Mark injects Ezekiel Akinyeni with a shot July 31, 2021, in D.C. (Craig Hudson/For the Washington Post)
BA.2.12.1 brings the novel coronavirus up another step on the contagiousness scale. Its close relative, BA.2, was already more transmissible than the first omicron strain that hit the country in late 2021.
And omicron was more transmissible than delta, and delta was more transmissible than alpha, and alpha was more transmissible than earlier variants that did not have the glory of a Greek alphabet name.
Most mutations are not advantageous to the virus. But when a mutation offers some advantage, the process of natural selection will favor it.
There are two fundamental ways that the virus can improve its fitness through mutation. The first could be described as mechanical: It can become innately better at infecting a host. Perhaps it improves its ability to bind to a receptor cell. Or perhaps the mutation allows the virus to replicate in greater numbers once an infection has begun — increasing the viral load in the person and, commensurately, the amount of virus that is shed, potentially infecting other people.
The other strategy involves the workaround of immunity. The human immune system, when primed by vaccines or previous infection to be alert for a specific virus, will deploy antibodies that recognize and neutralize it. But mutations make the virus less familiar to the immune system’s front-line defense.
The omicron subvariants keep coming: Scientists in South Africa have identified BA.4 and BA.5, which have mutations that were seen in earlier variants and are associated with immune evasion. Caseloads there are rising. New laboratory research, posted online Sunday but not yet peer-reviewed, indicated that the emerging subvariants are adept at eluding the neutralizing antibodies seen in people who recovered from infections with the original omicron variant. The authors of the study concluded that BA.4 and BA.5 have the “potential to result in a new infection wave.”
“The evolution is much more rapid and expansive than we initially estimated,” said Michael T. Osterholm, a University of Minnesota infectious-disease expert. “Every day I wake up, I fear there will be a new subvariant that we will have to consider. … We’re seeing subvariants of subvariants.”
Garry, the Tulane scientist, points out that mutations in the virus do not change its appearance dramatically. In fact, he said, even the heavily mutated variants don’t look much different from the original Wuhan strain, or different from other coronaviruses that cause common colds. These are subtle changes.
Garry has a software program that allows him to create a graphic image of the virus, and even rotate it, to observe the locations of mutations and draw inferences for why they matter. On Friday, asked about BA.2.12.1, and why it is spreading, he noted it has a mutation, named S704L, that probably destabilizes a portion of the spike protein on the virus’s surface. That essentially loosens up part of the spike in a way that facilitates infection.
This S704L mutation distinguishes this subvariant from BA.2.
The “704” refers to the 704th position for an amino acid on a chain of roughly 1,100 amino acids that form the protein. The S is one type of amino acid (“serine”) seen in the original strain of the virus, and the L (“leucine”) is what is there after the mutation. (The mutation is caused by a change in one nucleotide, or “letter,” in the genetic code of the virus; three nucleotides encode for an amino acid.)
The virus is spreading today in the United States on an immunological landscape much different from the one it first encountered in early 2020. Between vaccinations and infections, there aren’t many people entirely naive to the virus. The latest CDC data suggest the virus has managed to infect nearly 200 million people in the nation, which has a population of about 330 million. Among children and teenagers, about three out of four have been infected, the CDC estimates.
For the new CDC study, researchers looked at blood samples from thousands of people and searched for an antibody that is found after a natural infection, but not found after vaccination. The CDC concluded that the omicron variant managed to plow through the United States population during the winter almost as if it were an entirely new virus. The country by then was largely vaccinated. And yet 80 million people, approximately, became infected for the first time in that omicron wave.
On the family tree of this coronavirus, omicron is a distant cousin of delta, alpha and the other variants that had spread earlier — it came out of virologic left field. No one is sure of the origin of omicron, but many disease experts assume it came from an immunocompromised patient with a very lengthy illness, and the virus continued to use mutations to evade the immune system’s efforts to clear it.
Technicians inside a high-security coronavirus research lab in Durban, South Africa, on Dec. 15, 2021. (Waldo Swiegers/Bloomberg)
Omicron was mercifully less likely to kill a person than previous variants. But infectious-disease experts are clear on this point: Future variants could be more pathogenic.
As if mutation wasn’t enough of a problem, the virus has another trick up its sleeve: recombination. It happens when two distinct strains infect a single host simultaneously and their genes becoming entangled. The recombination process is the origin of what’s known as omicron XE. That recombinant probably emerged from a person co-infected with the original omicron variant and the BA.2 subvariant.
It was always possible in theory, but the identification of actual recombinants provides “proof of concept,” as Jeremy Luban, a virologist at the University of Massachusetts Medical School, puts it.
The worst-case scenario would be the emergence of a variant or recombinant that renders current vaccines largely ineffective at blocking severe disease. But so far, that hasn’t happened. And no “recombinant” has spread like omicron or other recent variants and subvariants.
This is the first catastrophic pandemic to occur in the age of modern genomic sequencing. A century ago, no one knew what a coronavirus was, and even a “virus” was a relatively new concept. But today, with millions of samples of the virus analyzed at the genetic level, scientists can track mutations virtually in real time and watch the virus evolve. Scientists across the planet have uploaded millions of sequences to the database known as GISAID.
Genomic sequencing has a major limitation in that, although scientists can track changes in the genome, they don’t automatically know what each of those changes is doing to the virus. Which mutations matter most is a question that can be discerned through laboratory experiments, modeling or epidemiological surveillance, but it’s not always simple or obvious.
Erica Saphire, president of the La Jolla Institute for Immunology, speculates that omicron has mutations that have changed the virus in ways not yet understood but which make it more resistant to antibody-mediated neutralization.
“It may have acquired some new trick that we haven’t uncovered yet,” Saphire said. “It’s harder to neutralize than I would have expected, based on the number of mutations alone.”
A reality check comes from Jeremy Kamil, associate professor of microbiology and immunology at Louisiana State University Health Shreveport: “These are all SARS-CoV-2.”
What he means is that these are all variations of the same virus, despite what seems like a tremendous amount of mutation. Correspondingly, someone who gets infected with one of these new variants has the same disease as people who got infected previously.
NOTE: The information below is not the latest. TAP HERE for today’s latest information.
By Roger Straw, Thursday, April 28, 2022
Solano County reports 527 new COVID infections in last 7 days, 2 new deaths and 24 hospitalizations. Benicia and Solano County back in HIGH rate of transmission.
Solano Public Health COVID dashboard, Thursday, April 28, 2022:
DEATHS: Solano reported two new COVID-related deaths in today’s report. One person who died was age 50-64 and one was age 65+. Solano has reported 7 deaths so far in April, all in the last 2 weeks. COMPARE:15 COVID deaths were reported in February, 17 in March. A total of 420 Solano residents have now died of COVID or COVID-related causes over the course of the pandemic.
TRANSMISSION RATE: With today’s report, Solano is once again experiencing a HIGH rate of transmission, with 527 new cases in the last 7 days (up from 397 at last report). CDC FORMULA: Based on Solano County’s population, 450 or more cases in 7 days places Solano in the CDC’s population-based definition of a HIGH transmission rate. Below 225 cases in 7 days shows MODERATE community transmission. Numbers between 225 and 450 are considered SUBSTANTIAL transmission.
ACTIVE CASES: Solano reported 621 ACTIVE cases today, up from 441 at last report.
CASES BY CITY – Thursday, April 28:
BENICIA added 30 new cases today, 103 in April so far, and a total of 3,238 cases since the outbreak began.TRANSMISSION RATE: Benicia has reported 53 new cases in the last 7 days, increasing well into the CDC’s HIGH rate of transmission. Benicia bounced between MODERATE and SUBSTANTIAL rate from mid-March through mid-April. For a city with Benicia’s population, anything over 27 cases in 7 days is considered HIGH TRANSMISSION. 14 to 27 cases is considered SUBSTANTIAL. Below 14 is rated MODERATE.
Dixon added 13 new cases today, total of 4,384 cases.
Fairfield added68 new cases today, total of 22,972 cases.
Rio Vista added 5 new cases today, total of 1,199 cases.
Suisun Cityadded20 new cases today, total of 6,032 cases.
Vacaville added 45 new cases today, a total of 21,863 cases.
Vallejoadded86 new cases today, a total of 25,901 cases.
Unincorporatedadded 0 new cases today, a total of 200 cases.
TEST RATE: Solano County’s 7-Day Percent Positive TEST RATE was 10% today, up from 8% at last report. Solano does not compare favorably to the nation or the rest of California: The CALIFORNIA 7-day % positive rate was 2.7% today, up from 2.3% at last report. [Source: Johns Hopkins Coronavirus Tracking Center]. The U.S. 7-day % positive rate was 6.1%. today, down from 6.4% at last report. [Source: CDC COVID Data Tracker.]
HOSPITALIZATIONS:
CURRENT: Solano reported the number of those currently hospitalized with COVID in the County rose today from 7 persons to 8. Current hospitalizations don’t tell the whole story, though, as this number reflects both admissions and discharges. Only from the increase in total hospitalizations (below) can we know how many new admissions have come into our hospitals as of this date.
TOTAL hospitalizations: Solano updated its Age Group and Race/Ethnicity charts today, adding 24 previously unreported hospitalizations, someone age 65+, for a pandemic total of 4,390. (See below, and note that the County’s hospitalization numbers for Race/Ethnicity is less accurate, but presented here to show relative percentages).TREND: Solano reported 284 hospitalizations in January, 184 in February, and (without explanation) 644 in March. 53 so far in April, and the County often updates this age/race hospitalization data long after the fact.
ICU Bed Availability Solano County reported available hospital beds fell again today, from 37% at last report to only 32% today, just barely in the County’s GREEN safe zone.
Ventilator Availability in Solano County also fell today from 70% to 64% available, in the County’s GREEN safe zone.
>The data on this page is from the Solano County COVID-19 Dashboard. The Dashboard is full of much more information and (as of 3/14/2022) is updated Monday and Thursday between 4 and 6pm. On the County’s dashboard, you can hover a mouse or click on an item for more information. Note the tabs at top for “Summary, Demographics” and “Vaccines.” Click here to go to today’s Solano County Dashboard.
See also my BENINDY ARCHIVE of daily Solano COVID updates (an excel spreadsheet). I have also archived the hundreds of full CORONAVIRUS REPORTS posted here almost daily on the Benicia Independent since April 2020.
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