In a promising breakthrough for global health, researchers in Pennsylvania have created an innovative antiviral chewing gum that could help reduce the spread of influenza and herpes simplex viruses. Developed from the Australian pea plant Lablab purpureus, this gum contains a potent antiviral protein known as FRIL (Favin-related lectin), which has demonstrated remarkable effectiveness in lowering the viral load in the mouth.
The research, led by Dr. Henry Daniell of the University of Pennsylvania’s School of Dental Medicine, builds upon earlier work undertaken during the COVID-19 pandemic. Back then, Daniell’s team explored how viruses are primarily transmitted through the oral cavity rather than the nasal passages. This insight led them to investigate oral interventions as a method for limiting virus spread.
“Controlling transmission of viruses continues to be a major global challenge,” Daniell said, according to Penn Today. “A broad spectrum antiviral protein (FRIL) present in a natural food product (bean powder) to neutralize not only human flu viruses but also avian (bird) flu is a timely innovation to prevent their infection and transmission.”
Their latest study, published in Molecular Therapy, showed that even a small quantity of bean-derived gum was highly effective. Just 40 milligrams of FRIL within a two-gram gum tablet could reduce viral loads by over 95%. This discovery could have significant implications for global public health, given the immense burden caused by these viruses. Seasonal influenza alone results in more than $11.2 billion in economic losses annually in the United States, while herpes simplex virus type 1 (HSV-1) infects about two-thirds of the global population and remains a leading cause of infectious blindness in Western countries.
The choice of Lablab purpureus was deliberate. The plant’s natural antiviral properties made it an ideal candidate for producing a safe and effective therapeutic. In their experiments, the researchers demonstrated that the FRIL protein could neutralize both major strains of influenza A (H1N1 and H3N2) and herpes simplex viruses HSV-1 and HSV-2. Importantly, the gum was manufactured to meet FDA clinical-grade standards, ensuring that it would be safe for human use.
“These observations augur well for evaluating bean gum in human clinical studies to minimize virus infection/transmission,” Daniell noted, expressing optimismin Penn News about the potential of the product for real-world applications.
Beyond influenza and herpes, the team is now turning their attention to another pressing health threat: bird flu. Outbreaks of highly pathogenic avian influenza strains such as H5N1 and H7N9 have been causing increasing concern across North America. Building on earlier findings where bean powder was shown to neutralize these avian flu strains effectively, Daniell’s team is exploring the idea of incorporating lablab bean powder into bird feed. This strategy could help control virus spread not just among humans but at the animal source itself, potentially reducing the risks of zoonotic spillover events.
What sets this innovation apart is its versatility and practicality. Unlike vaccines, which require complex logistics and time for development and distribution, the antiviral gum offers an accessible, simple, and rapid method to reduce transmission at the point of entry — the mouth. It could serve as a supplementary tool alongside traditional preventive measures, especially in high-risk environments such as hospitals, airports, and care homes.
While clinical trials in humans are still needed to fully validate the effectiveness of the gum in real-world settings, the early results are highly encouraging. If proven successful, this approach could represent a new frontier in the fight against respiratory and oral viruses, combining natural food products with cutting-edge biotechnology to deliver tangible health benefits.
As Daniell and his team continue their work, the world watches with anticipation. A simple piece of gum might soon become a frontline defense against some of the most persistent viral threats we face today.
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