Discover how Rational Vaccines is using its proprietary technology to combat COVID-19.

Reduce. Contain. Control.

Using our proprietary technology, we are developing rationally engineered, live attenuated viral immunotherapeutic and prophylactic vaccine candidates. Our aim is to help improve lives by reducing the suffering of those infected and reduce the spread of the virus. Our goal is to revolutionize the treatment, prevention, and diagnosis of herpes and herpes-related diseases worldwide. We envision a future where the world is free of herpes.


Focused on ending a
global pandemic.

The herpes simplex virus (HSV) is one of world’s most prevalent infections, negatively impacting the health of billions of people of all ages—and it can be spread when there are no symptoms or sores. Infected individuals are frequently asymptomatic at early stages, and at high risk of transmission. Yet herpes is not routinely screened for, and despite decades of attempts, the current standard of care is failing many patients. There is still no cure, nor is there an effective herpes vaccine.

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Meet Paul Predki

Hear from scientific advisory board chair Dr. Paul Predki what he believes will ultimately make Rational Vaccines mission to eradicate the herpes virus successful. Predki, who has a background in molecular biology and biochemistry, says you must have the right combination of two very important things- good science and passion.


Meet Dr. Gus Kousoulas

Dr. Kousoulas is part of the team that hopes to change the world for the millions around the globe who suffer from Herpes Simplex Virus. Hear in Kousoulas’ own words why he believes the work he does at Rational Vaccines is so important.

To us, that's not impossible. It's rational.