Norovirus outbreaks are detectable by wastewater monitoring earlier than by other surveillance methods depending on reporting practices, making this a potentially important public health tool

Researchers have identified powerful antibodies capable of neutralizing a wide range of norovirus strains, paving the way for designing a broadly effective norovirus vaccine. The discovery brings us closer to a vaccine that could provide lasting protection and prevent devastating effects of norovirus outbreaks.

Researchers have created a simple and efficient system to understand norovirus gene functions, enabling the development of antivirals and vaccines. The new method involves injecting norovirus cDNA clones into zebrafish embryos to generate infectious human noroviruses.

Researchers have discovered that compounds from seaweed can block norovirus infection by creating a shield in the human body. Fucoidan, a compound found in brown seaweed, showed the strongest blocking activity against two major norovirus strains, GII.4 and GII.17.

Researchers at the University of Osaka found that pertussis-associated DNA in wastewater increased before reported cases, indicating a new early warning system for pertussis outbreaks. Wastewater surveillance has the advantage of capturing broader community-level trends, including mild or asymptomatic infections.

A study evaluates a city-level warning system based on wastewater data to detect COVID-19 outbreaks early. The proposed system offers broader coverage, earlier outbreak detection, and lower costs compared to clinical surveillance.

A University of Osaka-led team developed a wastewater-based epidemiology approach to estimate influenza incidence, predicting community outbreaks about one week earlier than publicly available data. The method also enables separate estimation of influenza A and B trends, supporting more detailed monitoring of seasonal outbreaks.