Reposted by Mary Prahl, MD
With the ongoing #TB outbreak at an SF high school, we will leverage our expertise in child TB, with the @citc-tb.bsky.social and @ucsf-ctb.bsky.social. @ucsfchildrens.bsky.social is working closely with SF public health to support students and families.
pediatrics.ucsf.edu/news/access-...
pediatrics.ucsf.edu
Access in Action: How UCSF is Expanding Care to Support San Francisco’s Pediatric TB Response | Department of Pediatrics
When a tuberculosis (TB) outbreak emerged at a San Francisco high school at the end of 2025, the scale was immediately clear. More than 1,200 students required evaluation, with high rates of infection...
![among children younger than 5 years, with average coverage in the
South dropping below 70%.5However, these children have not yet
reached kindergarten, when immunization catch-ups typically occur to meet school requirements.
Reductions in US vaccination levels coincide with the recent increase in US measles outbreaks. In 2024, the US experienced 16
measles outbreaks totaling 285 cases and 114 hospitalizations. At
least 198 of these cases (69%) were related to a domestic outbreak.3
As ofMarch 7, 2025, there have already beenmore than 222measles
cases (at least 206 [93%] related to domestic outbreaks), 38 hospitalizations, and 2 reported deaths stemming from 3US outbreaks.3
Less than 5% of the 2024 and 2025 individuals with measles completed a 2-dose vaccination series.3
With some local immunization levels inadequate to avert
outbreaks3,4 and ongoing disease spread in various regions of the
country,3 a dichotomy between domestic and international travel
is not appropriate. For many travel itineraries, there may even be a
higher risk of measles exposure at the US point of departure than
at the international destinations. Additionally, much of the US remains highly vulnerable to measles outbreaks because of unvaccinated individuals who travel across state lines and introduce the virus domestically. This issue can be compounded by the social and
geographic clustering of vaccine hesitancy, which increases the likelihood that an unvaccinated traveler will return to a region with vaccination levels too low to contain onward transmission.2,5 Recognizing this potential risk, states such as New York already advise an
additional MMR dose for infants aged 6 to 11 months traveling internationally or to any domestic location experiencing a measles
outbreak.8 We endorse this policy and propose a national extension of these recommendations.
Many parents voice concerns regarding the cumulative number ofvaccinations administered during childhood, and anearly third
dose would be in addi…](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:fpwat6yypl7sjbke3orwth7f/bafkreighzi5eus4jfdbw7e5gnhjvjtdfrbxza2mamnj7hr5hygm4fdgpfy)
