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 Agustin Fernandez

Meet Rational Vaccines CEO Agustin Fernandez and learn why he believes a cure is within reach for HSV patients based on the work of Rational Vaccines scientists

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Rational Vaccines HSV Vaccine

30-years in the making, Rational Vaccines CEO Agustin Fernandez discusses his vision for a future with seamless distribution of a Rational Vaccines HSV vaccine

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