Japanese inventor’s antiviral water-tech paper lands in Scientific Reports

Human Network says its Hatano-RCMF system combined with acidic spring water from Nakanozawa Onsen can fully inactivate highly pathogenic avian influenza virus in one minute. The company plans to push the approach toward farm biosecurity as it seeks to replace culling with prevention.

Why it matters: - Human Network is pitching a path toward “zero culling” for avian influenza, a disease that has devastated poultry farms and wild birds worldwide. - The company says the approach could shift biosecurity from reacting after an outbreak to preventing virus spread before it reaches a flock. - The paper’s publication in a Nature-family journal gives the work visibility in the global research community.

What happened: - Human Network, based in Sakura, Chiba, said founder and CEO Tatsuo Hatano, 86, led a 30-year research effort that combined the Hatano-RCMF防疫 system with acidic spring water from Nakanozawa Onsen in Fukushima Prefecture. - The company said the study showed complete inactivation of highly pathogenic avian influenza virus in one minute. - The paper was published in Scientific Reports on Oct. 20, 2026, with public release after embargo. - The company said it also applied to register Oct. 20 as “World Chicken Day” with the Japan Anniversary Association.

The details: - The study focused on the H5N1 strain of highly pathogenic avian influenza virus. - Human Network said the spring water’s pH is 2.1, creating an environment the virus cannot survive in. - The company said Hatano-RCMF adds fluid and filtration control that helps sulfur compounds and metal ions in the water act on the virus’s envelope and proteins. - Human Network said experiments showed more than 99.99% of the virus was inactivated within one minute of mixing. - The company said the effect was stronger than using acidic water such as hydrochloric acid alone. - The paper title is “Hatano-RCMFと天然の強酸性温泉水の組み合わせによる高病原性鳥インフルエンザウイルス（H5N1）の不活化.” - The DOI is 10.1038/s41598-026-68623-2. - Human Network listed more information on its website.

Between the lines: - The core claim is not just antiviral activity, but a practical biosecurity use case that could be deployed on boots, vehicles, surrounding areas and wastewater systems. - The announcement blends a scientific result with a broader public-health message: preventing outbreaks without resorting to mass culling. - The “World Chicken Day” proposal appears intended to build public awareness around the technology and the company’s animal-welfare framing.

What's next: - Human Network said it wants to move the technology into real-world use at poultry farms in Japan and overseas. - The company plans to test applications in footwear disinfection, vehicle disinfection, environmental spraying and wastewater treatment. - Human Network also said it will promote annual Oct. 20 awareness efforts tied to the new commemorative day proposal.

The bottom line: - Human Network is trying to turn a lab result into a farm-level alternative to outbreak culling, and the next test is whether the one-minute inactivation claim can scale into routine biosecurity practice.