James Mu had braced for the decision that got here in late January.
A affected person from his rural Northern California county had measles, a illness so uncommon there that many physicians have by no means handled a case.
Whereas California has a few of the strictest vaccine legal guidelines within the nation, conservative Shasta County’s method through the covid pandemic stood in stark distinction with the state’s steering. Its native leaders opposed masking and vaccine mandates, and they ousted the county public well being officer, who had sought to implement these state insurance policies and different security measures.
A possible measles outbreak had “always been in my mind,” mentioned Mu, an outspoken household doctor who was amongst native docs to signal a 2022 letter opposing covid vaccine mandates. However Mu, the county’s present public well being officer, mentioned that when his division recognized the primary native measles case, it acted decisively: “We forgot about fear.”
They went to work, he and his crew mentioned, to painstakingly retrace the steps of 9 folks sickened with measles, contacting greater than 600 individuals who could have been uncovered at Costco, a sushi restaurant, sporting occasions, a faculty, or a healthcare clinic. Simply one of many 9 contracted measles from a kind of areas, whereas the others had been characterised by the general public well being division as “close contacts.”
Two and a half months later, the Shasta County public well being division had declared the measles outbreak over. Infectious illness consultants say the fast response executed within the principally rural, vaccine-hesitant county affords a playbook for public well being officers throughout the nation who’re struggling to maintain the extremely contagious virus from spreading.
“To me, the story of Shasta is one of hope,” mentioned Peter Chin-Hong, an infectious illness specialist on the College of California-San Francisco.
After greater than a 12 months of ongoing instances, measles has sickened greater than 4,000 folks within the U.S., based on the Facilities for Illness Management and Prevention. For the primary time in twenty years, the U.S. is poised to lose its measles elimination standing, a designation signaling that outbreaks are uncommon and quickly contained.
Utah had confirmed 673 measles instances as of late Might whereas South Carolina had seen at the very least 997, based on their state well being departments. California had confirmed 74 instances.
Essential Speedy Response
In late January, when Shasta County recognized the primary case, Mu gathered with greater than a dozen communicable-disease nurses, epidemiologists, and emergency and group relations staffers for an “initial threat assessment meeting.”
Measles is an airborne pathogen that may linger in a room for 2 hours after an contaminated individual leaves, so on-call nurses and responders confronted a frightening process determining precisely when the affected person was infectious and the place that they had been.
“Everything is about speed — speed in identifying the person and finding the sites where measles were occurring,” Chin-Hong mentioned. “If you keep it down to a few cases, it’s much easier. If you wait just a little bit longer, those people would have been in contact with a lot more people.”
Roughly 9 in 10 unvaccinated folks uncovered to the virus change into contaminated. All 9 of Shasta County’s confirmed instances had been individuals who had been unvaccinated or had unknown vaccination standing, based on the county’s public well being division. Earlier than the division referred to as households who could have been uncovered, county nurses typically enlisted college principals, church workers, clinic managers, or others to make first contact, mentioned Daniel Walker, the county’s supervising epidemiologist.
Erika Piper, the top of Redding Christian College in Palo Cedro, talked to highschool households cautious of requests by public well being officers — and authorities normally — to supply immunization information or different private data. She mentioned she additionally had robust however respectful conversations with households to make sure uncovered, unvaccinated youngsters stayed house from college, so their group may abide by public well being steering calling for 21 days of isolation.
“I would say to them: ‘That’s totally fine. You have a choice. You’ve made your choice. But there are still consequences to the choices we make,’” Piper mentioned, referring to households who had opted to not vaccinate their youngsters. “‘And so you can either be a willing helper and a partner with me in this, and we can make it work and get through it, or you can battle me on it. But either way, you can’t be in school.’”
She allowed work to be despatched house to quarantined college students and personally took every day attendance on the college to assist guarantee well being pointers had been met.
The California Division of Public Well being assisted with case investigation by making calls to uncovered folks on the county’s request and deployed a covid-era telephone system, CalCONNECT, that automates symptom monitoring for uncovered contacts.
Shasta officers warned folks to not be cautious of calls from contract tracers utilizing a 279 space code, worrying they might dismiss them as scams.
Delicate Conversations
In Shasta County, the measles vaccination fee is slightly below the 95% threshold for community-level safety, however in pockets of the group the charges are decrease and differ broadly, based on state information. And in these susceptible locations, an outbreak can unfold.
For instance, greater than 1 / 4 of Shasta faculties had charges under 95% in 2024-25, based on the newest state information accessible. A number of had been under 90%. Though Redding Christian College reported a kindergarten measles vaccination fee at or above 95% in 2024-25, it was 87.8% three years earlier.
When it got here to speaking to individuals who had been uncovered to measles, Sharayne Loomis, a supervising public well being nurse on Shasta’s communicable-disease crew, described the division’s method as “meeting people where they are.” That included nonjudgmental conversations that supported residents no matter their stance on vaccination, Loomis mentioned.
Mu mentioned the identical philosophy prolonged throughout the county’s well being businesses, however he publicly cautioned towards “measles parties,” gatherings the place unvaccinated youngsters are deliberately uncovered to construct immunity. And he spoke towards receiving excessive doses of vitamin A with out medical supervision. Vitamin A has circulated as a measles therapy in vaccine-skeptical communities and was endorsed final 12 months by Well being and Human Companies Secretary Robert F. Kennedy Jr., although the CDC web site says that vitamin A “does not prevent measles and is not a substitute for vaccination.”
Some group members mentioned Mu’s division may have been extra proactive earlier than the outbreak, imploring him to emphasise the significance of vaccination in public messaging.
“Clearly, when the situation was known to be coming into our communities, that would have been a time to advise for vaccines,” Steve Kahn instructed county supervisors at their February board assembly. “I think he was negligent in that.”
For years, public well being has been a political flash level for the area. The Board of Supervisors fired the earlier public well being officer, Karen Ramstrom, in Might 2022 after pushback from residents upset along with her enforcement of state covid guidelines.
In an effort to achieve vaccine-hesitant Californians, state officers have been working in a coalition referred to as Public Well being for All Californians Collectively and thru an effort nicknamed Mission Stethoscope that makes use of social media monitoring and different analysis to tailor messaging to skeptical viewers.
Erica Pan, director of the California Division of Public Well being, mentioned the state is getting ready for measles to probably surge when it hosts World Cup soccer matches beginning in June, in addition to with elevated summer season journey.
However relating to mitigating an outbreak in a group, public well being officers say, residents — particularly these skeptical of vaccines — want to listen to from the folks they know.
“Trust is very important for us,” Mu mentioned. “It is critical in getting people to follow our guidance, especially during an outbreak.”
