The edition · Infectious Diseases
Oropouche in pregnancy: fetal loss and brain abnormalities, now with a comparison group
A Brazilian cohort puts numbers on the harm of Oropouche virus in pregnancy. Also today: a once-weekly oral HIV regimen, an FDA supplement on linezolid, and what vancomycin powder in spinal wounds does and does not show.
The edition in brief
A prospective cohort of 544 pregnant women in Rio de Janeiro state found confirmed Oropouche virus infection associated with roughly three times the risk of adverse maternal outcomes (18% vs 7%; aRR 2.90), including fetal loss and haemorrhage, and with adverse infant outcomes (aRR 9.18, wide interval); 8% of infants of infected mothers had central nervous system abnormalities, against none of the uninfected. Symptoms did not predict outcome. In a phase 3 trial reported in July, switching 607 virologically suppressed adults from daily bictegravir–emtricitabine–tenofovir alafenamide to once-weekly oral islatravir–lenacapavir was non-inferior at 48 weeks, with no participant above 50 copies/mL on the weekly regimen. The FDA recorded a supplement to Pfizer's linezolid application on 23 October; the record does not specify its content. A meta-analysis of 14 studies (9,802 spinal surgery patients) linked intra-wound vancomycin powder to lower surgical site infection (OR 0.55), but in the four randomised trials alone the effect was not significant (OR 0.73, 0.45–1.18).
Once-weekly oral islatravir–lenacapavir held HIV suppression as well as a daily single tablet
Note weekly oral switching as an emerging option for suppressed patients; nothing changes in clinic until it is approved.
FDA records a supplement to the linezolid (Zyvox) application
No prescribing change follows from this supplement; keep monitoring blood counts and serotonergic interactions on longer linezolid courses.
Vancomycin powder in spinal wounds: fewer infections in cohorts, no significant effect in randomised trials
Treat intra-wound vancomycin powder as unproven in randomised trials, and keep timed intravenous prophylaxis as the base of spinal surgery prophylaxis.
Surgical prophylaxis is a dose, not a course
Give one well-timed prophylactic dose and stop by 24 hours unless infection is documented.
Oropouche virus in pregnancy linked to fetal loss, haemorrhage and infant brain abnormalities
Ask pregnant women about travel to Oropouche-affected areas, and consider the virus in fever after such travel even if symptoms were mild or absent.
Read the rest in the app
You have read your two free briefings this month. The app carries all 27 specialties, every morning, free — and this one is waiting in it.

Scan to keep reading on your phone. No account needed to start.
Tomorrow morning, before your first patient
One edition a day for infectious diseases, written by the desk, every claim tied to its paper. Six minutes.
Get the app — free