COVID-19

[UPDATED] Mendocino Public Health Determines One Hundred Doses of Discontinued Moderna Batch Were Administered at Mass Vaccination Event

The following is a press release issued by the Mendocino County Executive Office. The County of Mendocino issued a second version of the press release revealing that 100 doses of the discontinued Moderna vaccine were distributed during a vaccine clinic. The original content that was removed from the first draft is indicated below with a strike-through and the updated text is in italics.

Dr. Erica S. Pan, the State of California’s lead epidemiologist notified counties on the evening of  Sunday, January 18th that the use of a specific lot of the Moderna vaccine should be “paused” due  to the possibility of higher allergic reactions, as evidenced by a San Diego County Moderna  vaccination episode. 

The batch in question was used at a mass vaccination event in San Diego, where six healthcare  workers experienced allergic reactions to the Moderna vaccine. Dr. Pan states no other batches  have been identified with increased reactions. 

“The county has reviewed the lot numbers administered through our mass vaccination clinics as  well as the inventory stored in our freezer. We can confirm that none of Mendocino County Public  Health’s Moderna vaccine on hand or already administered is associated with Moderna Batch 41L20A- the batch the state is concerned with,” says Vaccine Coordinator Adrienne Thompson. 

“The county has reviewed the lot numbers administered through our mass vaccination clinics as
well as the inventory stored in our freezer. Upon further review, we are confirming that 100 doses of
Mendocino County Public Health’s Moderna vaccine associated with the batch the state is
concerned with were used at a vaccination event at the Redwood Empire Fairgrounds on January
7th,” says Vaccine Coordinator Adrienne Thompson.

According to Thompson, all 100 doses were administered at the event and comprised a separate
order from the State. No adverse reactions occurred. “County staff will be contacting all 100
individuals that received a vaccine with this lot number to alert them of the recall. No other side
effects have been noted from use of this vaccine.

Mendocino County Public Health is responsible only for vaccine allotments distributed by the State to Public Health.  

The state separately allocates and distributes vaccine allotments to Adventist Health, to pharmacies  and to Indian Health Clinics. It is up to those healthcare entities to administer, track and report all  vaccine data to the state. 

“Mendocino County does not have access to their vaccine information or their lot numbers,” notes  Thompson. “However, these other vaccine providers are continuing to review their Moderna  inventory to compare their lot numbers against the state-identified batch in question.” Mendocino County Public Health Officer Dr. Andrew Coren states that because these are new  vaccines, events such as this are not unexpected, and should not deter the public from getting  vaccinated.

This isolated event has not increased the percentage of vaccine reactions, which continue to be  about one person in 100,000. Getting vaccinated continues to be the best way for all of us to help  move beyond this virus and return to a normal way of life,” he concludes.  

The county’s website, Facebook and Twitter pages are the best way to keep updated about vaccinations and all issues related to Covid-19. For specific vaccine-related questions, please phone Mendocino County’s vaccination hotline at (707) 472-2663 or email DOC-vaccines@mendocinocounty.org.

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