Practically three-quarters of 1,000,000 vaccinated individuals, tracked for years in opposition to a matched group of unvaccinated friends. The end result was so stark that Dr. Daniel Griffin, host of the Infectious Illness Puscast and a doctor at Columbia College Irving Medical Middle, distilled it right into a pitch any affected person may perceive.
“Get your most cancers vaccine. Be just like the man promoting the newspaper, get your most cancers vaccine right here,” he advised his co-host, Dr. Sarah Dong, in the course of the episode launched September 2, 2026.
The information behind that enthusiasm got here from a cohort examine revealed within the Worldwide Journal of Infectious Ailments. Researchers pulled de-identified data from 66 U.S. healthcare organizations, constructing a matched pattern of 716,630 vaccinated and unvaccinated pairs. What they discovered upends the long-standing framing of the HPV shot as primarily a cervical most cancers prevention instrument.
The Most cancers Vaccine No one Referred to as a Most cancers Vaccine
The HPV vaccine was all the time about most cancers. However public well being messaging spent years emphasizing its function in stopping cervical illness, which left its impression on head and neck cancers underappreciated. The true-world proof now makes that blind spot untenable.
Within the vaccinated group, 40 individuals developed head and neck most cancers. Within the unvaccinated management group, the quantity was 130. The discount was roughly 70% total, and for oropharyngeal most cancers particularly — the kind most famously related to HPV within the throat — safety exceeded 90%.
| Consequence | Vaccinated | Unvaccinated | Discount |
|---|---|---|---|
| Head and neck most cancers instances | 40 | 130 | ~70% |
| Oropharyngeal most cancers particularly | Not disclosed | Not disclosed | >90% |
Simply as necessary, the Kaplan-Meier survival curves saved separating over time. The unvaccinated cohort’s most cancers incidence climbed steadily with longer follow-up, whereas the vaccinated group’s line stayed almost flat. That sample suggests the safety is sturdy, not a short-term artifact.
Griffin additionally addressed the ethical panic that adopted the vaccine’s introduction — the argument, well-liked in some circles twenty years in the past however totally debunked since, that vaccinating youngsters in opposition to a sexually transmitted virus would encourage promiscuity. He dismissed it as a teenage-era concern. The information, he stated, have answered it.
The Shingles Shot That Protects Your Coronary heart
If the HPV findings expanded what a vaccine can do, the ultimate examine mentioned within the episode stretched that idea additional than even the hosts anticipated.
The recombinant shingles vaccine (RZV) was launched to interchange a live-attenuated model. As a result of the U.S. transitioned quickly from one to the opposite, researchers had a pure experiment: adults aged 60 and older vaccinated simply earlier than the swap may very well be in contrast in opposition to these vaccinated simply after, with minimal variations between the 2 teams besides which vaccine they obtained.
The outcomes, revealed in Nature Medication, confirmed that the recombinant vaccine was related to a 9% discount in a composite cardiovascular endpoint over seven years. The person elements have been much more putting.
| Cardiovascular Consequence | Discount with Recombinant Shingles Vaccine |
|---|---|
| Composite endpoint | 9% |
| Ischemic coronary heart illness | 10% |
| Coronary heart failure | 12% |
| Ischemic stroke (males) | 12% |
| Atrial fibrillation | 7% |
Dr. Dong, who co-hosts the Febraw podcast, summed up the discovering with out feigned objectivity.
“So the shingles vaccine retains you from being demented. It retains you from having strokes and coronary heart failure and coronary heart illness,” she stated. “Form of wonderful stuff.”
The implication, she famous, is that the cardiovascular advantages could finally drive broader public well being suggestions and better vaccine uptake. If a shot initially marketed for one drawback reliably reduces the chance of a number of others, the calculus for sufferers — and for the methods that pay for vaccines — modifications meaningfully.
POET-2 and the Commerce-Off Not one of the Pointers Ready For
The episode’s bacterial part centered on POET-2, a trial revealed within the New England Journal of Medication days earlier than the recording. It asks a query that will have been thought-about heretical a decade in the past: can endocarditis remedy be stopped early if the affected person is doing properly?
Endocarditis — an infection of the guts valves — has historically mandated 4 to 6 weeks of intravenous antibiotics. The unique POET trial in 2019 confirmed that oral step-down remedy may work in addition to IV-only remedy. POET-2 went additional, asking whether or not remedy may merely be stopped after two to 4 weeks if medical stabilization standards have been met.
The trial enrolled 508 adults with left-sided endocarditis attributable to Staphylococcus aureus, Streptococcus species, or coagulase-negative staphylococci. These within the response-tailored group stopped antibiotics at randomization; these within the standard-duration group continued to the traditional 4 to 6 weeks.
| Endpoint | Response-Tailor-made (n=255) | Customary Period (n=253) |
|---|---|---|
| Median days alive with out antibiotics (6 months) | 183 | 169 |
| Main security composite | 8.2% | 10.7% |
| Relapse of main pathogen | 5.1% | 1.6% |
The trial met its non-inferiority margin on the security composite. Sufferers within the tailor-made group gained 13 further antibiotic-free days — significant time not connected to an IV line or a heavy oral routine. However the relapse sign gave each hosts pause.
Dong acknowledged that the authors defend the 5.1% relapse fee by pointing to the two–9% vary cited in European Society of Cardiology tips. However she flagged a niche within the knowledge: the trial doesn’t make clear what occurred to these relapse sufferers later.
“It appears exhausting to separate out relapses of bacteremia or endocarditis from the chance that they’d contribute to elevated mortality down the street,” she stated.
Griffin’s learn was extra pragmatic. If a affected person is clinically steady at two to 4 weeks, he argued, persevering with antibiotics doesn’t clearly assist — and IV antibiotics carry their very own substantial harms. Dong was extra cautious, saying she wants to look at the supplemental knowledge earlier than deciding which sufferers, if any, ought to get shortened programs.
The American Faculty of Cardiology marked the event with a uncommon second of social media poetry: “Tailor-made care responds, two weeks much less antibiotics, relapse threat could rise.”
The Antibiotic Shrinkage Motion
POET-2 will not be an remoted experiment. It’s a part of a broader push to shorten antimicrobial programs wherever attainable, pushed by rising recognition that antibiotics will not be free — they trigger unintended effects, drive resistance, and value time and money.
The IDSA’s 2025 medical observe tips for classy urinary tract infections, revealed in Scientific Infectious Ailments, make that philosophy specific. Dr. Dong provided a working joke: given how late in 2026 the rules truly appeared, “these needs to be the 2027 tips.”
Two suggestions stand out as genuinely practice-changing. First, clinicians ought to transition to oral antibiotics in clinically bettering sufferers who can take medicine and have an efficient oral choice — “whatever the presence of related gram-negative bacteremia.” In different phrases, micro organism within the bloodstream doesn’t robotically mandate extended IV remedy when the supply is an advanced UTI.
Second, length needs to be 5 to seven days for fluoroquinolones or seven days for non-fluoroquinolones, fairly than the longer programs many clinicians nonetheless default to. Once more, this is applicable no matter whether or not bacteremia is current.
Griffin interrupted in the course of the dialogue to vent a few bigger drawback he sees in empiric prescribing. The rules’ fourth step — for sepsis sufferers, seek the advice of the native antibiogram — needs to be the place to begin, not an afterthought, he argued.
“Why use Augmentin when solely like 62% of the bugs you are attempting to deal with are delicate to that?” he stated. “What would you like? Like a D on the take a look at?”
The Trial Design Bottleneck
For all of the medical progress, the episode repeatedly returned to a quieter constraint: trial design limitations.
The clearest instance got here from a section 3 trial of VPM1002, a recombinant BCG pressure examined in opposition to customary BCG for stopping Mycobacterium tuberculosis an infection in newborns. The trial ran throughout 10 principal and 4 satellite tv for pc websites in sub-Saharan Africa, vaccinating roughly 6,900 infants with a median follow-up of 35 months.
The first endpoint was QuantiFERON conversion — a blood take a look at indicating TB an infection. VPM1002 carried out numerically worse than customary BCG on each endpoint.
| Endpoint | VPM1002 | Customary BCG |
|---|---|---|
| QuantiFERON conversion (main) | 184/3,471 (5.3%) | 150/3,469 (4.3%) |
| Confirmed TB instances | 18 | 6 |
| Unconfirmed TB instances | 53 | 19 |
The hazard ratio of 1.23 simply missed the pre-specified non-inferiority margin of 1.25, and the trial was terminated early in October 2024 attributable to lower-than-expected conversion charges.
However for Dr. Dong, the vaccine’s obvious failure was secondary to what the trial revealed concerning the subject’s methodological bind.
“The authors actually spotlight the problem right here is the problem of surrogate an infection endpoints in TB vaccine efficacy trials,” she stated.
Microbiologically confirmed illness — the gold customary — requires pattern sizes and follow-up durations which might be prohibitively costly and sluggish. An infection endpoints like QuantiFERON conversion are cheaper however noisy, stricken by indeterminate outcomes, false positives, and uneven family publicity that may swamp any true vaccine impact. On this trial, the VPM1002 group had 33% greater family TB publicity, a confounder that seemingly inflated conversion charges no matter vaccine efficacy. A post-hoc exposure-stratified evaluation confirmed comparable conversion charges between teams as soon as that imbalance was accounted for.
The identical bottleneck appeared in a extra mundane context. An Open Discussion board Infectious Ailments paper challenged a latest proposal to outline “uncomplicated candidemia” eligible for a shortened seven-day antifungal course. The researchers discovered that solely 33% of candidemia episodes even met the proposed standards. They then calculated {that a} randomized non-inferiority trial evaluating seven versus 14 days of remedy would require 1,130 sufferers. Griffin’s verdict on whether or not such a trial will ever occur: “That is not going to occur.”
The Bodily Examination Drawback
One examine within the episode challenged a foundational assumption of outpatient pediatrics: that a physician can diagnose pneumonia by analyzing a baby.
The JAMA Community Open examine, drawn from the Pediatric CAP Severity (CAPS) potential cohort, examined inter-rater reliability of bodily examination findings throughout seven educational pediatric emergency departments. Two examiners evaluated the identical 252 kids inside 60 minutes of one another.
The end result: no bodily examination discovering met the pre-specified threshold for inter-rater reliability. Wheezing and retractions had the very best settlement, however solely round 50%, with confidence intervals extending to 0.6 — barely higher than probability.
“No bodily examination findings met predefined significance for interrater reliability,” Dr. Griffin famous.
The discovering issues as a result of tips presently advocate diagnosing outpatient community-acquired pneumonia in kids based mostly on bodily examination fairly than imaging. If two skilled clinicians can’t reliably agree on what they hear and see, that basis is shakier than the rules assume. Griffin added a characteristically dry reminiscence from his medical coaching: attendings confidently auscultating coronary heart murmurs, just for echocardiography to show the bounds of medical acumen.
The Subsequent Outbreak Query: IPV’s Mucosal Immunity
The episode’s polio dialogue ran in opposition to the grain of standard outbreak response. Oral polio vaccine has lengthy been the instrument of alternative in outbreaks as a result of it induces mucosal immunity within the intestine, the place the virus replicates. Inactivated polio vaccine, against this, was thought to offer sturdy systemic safety however weaker mucosal protection — a legal responsibility when attempting to cease virus shedding in an energetic outbreak.
A randomized open-label trial in JID challenged that assumption. Performed in Bangladesh with 500 polio vaccine-naive infants, it in contrast three doses of IPV in opposition to bivalent OPV, then challenged each teams with novel OPV kind 2.
The important thing findings framed a unique image. Fecal shedding of the problem virus was low in each teams — 1.7% within the IPV group versus 2.6% within the bivalent OPV group. IPV truly induced greater nasal and serum antibody titers, and intestinal PV2-specific immunity was comparable between the teams. Stool ranges of infectious problem virus didn’t differ.
Griffin drew a direct medical implication. Well being methods “caught with OPV vaccination” in outbreak response could have underestimated IPV’s potential.
“As a substitute of feeling like we’re caught with OPV vaccination and significantly the novel um we will probably be leaping in with IPV um since you do truly get a few of this um mucosal immunity,” he stated.
The caveat he flagged: the protecting function of IgA antibodies stays controversial, and the deeper mechanistic dialogue, he stated, belongs on his different present, This Week in Virology, the place he mentioned it with Vincent Racaniello. The trial’s sensible implication, nonetheless, is that IPV could also be a viable outbreak instrument in settings the place nOPV2 is unavailable or undesirable — a significant shift for nations which have already eradicated OPV from routine immunization.
The Outbreak Surveillance Hole
Sandwiched between the vaccine discussions was a methodological lesson from the biggest measles outbreak within the U.S. in roughly three a long time. The South Carolina outbreak, spanning October 2025 to March 2026, produced about 1,000 reported instances. However the reported numbers lagged actuality by days — the median delay between rash onset and public well being report was two to a few days, with 93% of instances reported inside 14 days.
That lag creates an issue for real-time decision-making. When instances appeared to say no in late January, public well being officers couldn’t instantly distinguish a real slowdown from a delay in reporting.
The instrument they used — “nowcasting,” an idea Dr. Dong stated was new to her — corrects for these routine reporting delays utilizing partial knowledge. It allowed South Carolina’s Division of Public Well being to verify that the January decline was actual, enabling response efforts to de-escalate in February and March 2026.
The context that made this greater than an educational train: Pennsylvania was already experiencing an outbreak that had produced deaths and appeared poised to surpass South Carolina’s thousand-case mark as soon as all numbers have been reported.
The Epistemic Stance
Throughout an episode protecting HPV, shingles, endocarditis, UTI, TB, polio, candidemia, and a weird fungal case traced again to a Houston oak tree, a constant philosophy emerged from each hosts.
They celebrated real-world proof at scale — 1.44 million sufferers for HPV, pure experiments for shingles — whereas remaining skeptical of single-center research and underpowered subgroup analyses. The endocarditis-in-transplant-recipients examine, for instance, included solely 13 hematopoietic stem cell transplant sufferers out of 253 transplant instances, a limitation Dr. Dong flagged repeatedly as making agency conclusions about that inhabitants not possible.
The unresolved pressure price watching is POET-2’s relapse sign. If 5.1% of sufferers relapse after response-tailored remedy, and people relapses carry downstream mortality threat not captured in a six-month composite, the cost-benefit calculus may shift. The IDSA’s equally daring willingness to disregard gram-negative bacteremia in difficult UTI length selections shall be examined in real-world outcomes knowledge over the following a number of years. Each suggestions replicate the identical guess: that the harms of extended antibiotics are actual, measurable, and infrequently worse than the modest relapse dangers they forestall. Whether or not that guess holds will outline antimicrobial stewardship for the following decade.
