1. Three doses help—but immunosuppressed patients remain a COVID-19 high-risk group Summary: In a systematic review and random-effects meta-analysis, Stadler and colleagues searched PubMed, Scopus, and Embase through...
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ViVa 38– Global outbreak status (23rd September 2026)
Ebola disease (Bundibugyo virus) — Democratic Republic of the Congo: As of September 19, the DRC had reported 7,672 confirmed cases and 3,699 deaths; 58 cases and 23 deaths were newly reported in the preceding day...
Feature: The 2026 vaccine licenses: influenza drives a new platform era
The most revealing feature of vaccine licensure in 2026 is not a newly targeted pathogen. It is the concentration of innovation around familiar respiratory threats: seasonal influenza and COVID-19. Four notable...
ViVa 37– Global outbreak status (16th September 2026)
As of September 15, 2026, the largest acute international outbreak is Bundibugyo Ebola virus disease in the Democratic Republic of the Congo (DRC), which continues to expand rapidly. Other active priorities include...
Literature update ViVa week 37-2026
1. More potential rabies exposures, more PEP errors: CDC health alert Summary: The CDC issued a Health Alert Network advisory on September 10, 2026, following increased reports of human exposure to rabid or potentially...
ViVa 37 Feature: Influenza vaccines for the 2026–2027 respiratory season
For decades, seasonal influenza vaccines were produced primarily in embryonated eggs. Live attenuated influenza vaccine (LAIV), administered intranasally, became available in 2003. Over the past decade, additional...
Literature update ViVa week 36-2026
1. Firearms remain America’s defining youth mortality crisis Summary: In this correspondence responding to a 2026 research letter, Bleyer, Liu, and Thomas analyzed 2024 CDC WONDER mortality data for U.S. residents aged...
ViVa 36– Global outbreak status (09th September 2026)
Period covered: September 1–8, 2026. The most consequential event remains the rapidly expanding Bundibugyo Ebola outbreak in the Democratic Republic of the Congo (DRC); other priority signals are ongoing mpox...










































































