The edition · Infectious Diseases
What a Nipah review tells you, and antibiotic prophylaxis that is working
A systematic review maps Nipah virus's wide-ranging lethality and short incubation for the clinicians who may meet it, alongside the limits of mpox cross-clade immunity and real-world data that adjunctive azithromycin is cutting post-caesarean infection.
The edition in brief
Today's infectious diseases edition opens with a systematic review of Nipah virus drawing on 119 papers and 23 outbreaks across south and southeast Asia: pooled case-fatality ranged from about 9% to 82% by setting, median incubation was around nine days, and most reproduction-number estimates were below one, consistent with limited but real human-to-human transmission. A multicountry study then finds that smallpox or MVA-BN vaccination, and even prior clade IIb infection, generated little neutralising antibody against mpox clade Ib, a caution for cross-clade protection. On regulation, a generic manufacturer's supplement for tigecycline reflects continued generic availability of a reserve antibiotic, an administrative step rather than any new safety signal. A stewardship pearl covers reviewing empirical antibiotics at 48 to 72 hours. The edition closes on a 1.66-million-delivery analysis showing that adoption of adjunctive azithromycin at unscheduled caesarean rose to about 40% after 2016 trial evidence, tracking a fall in post-caesarean infection.
Nipah virus: what the pooled epidemiology actually shows
Use an incubation of about nine days and a high, setting-dependent case-fatality to guide isolation and contact monitoring when Nipah is suspected.
Smallpox and mpox vaccination gave little neutralising cover against clade Ib
Treat prior smallpox or mpox vaccination, and past clade IIb infection, as uncertain protection against clade Ib rather than assured cover.
A generic tigecycline supplement clears the FDA
Note continued generic availability of tigecycline; nothing here changes its reserve status or its known mortality caution.
Put an antibiotic review on the calendar at 48 to 72 hours
Treat the 48-to-72-hour antibiotic review as a fixed step: stop, narrow, or set a stop date based on culture and course.
Adjunctive azithromycin at unscheduled caesarean is being adopted, and infections are falling
Ensure local protocols add adjunctive azithromycin to standard prophylaxis for unscheduled caesarean delivery.
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