A global health company specializing in vaccines, diagnostics, antivirals, and other innovative prevention tools for effective distribution in resource poor and moderate income countries.

“Vaccines are one of the most important gifts of science to modern medicine and public health. To date, the world has focused their vaccine distribution strategy on children, particularly those under the age of five. The business model that has been used to accomplish this has been based on non-profit donations from global organizations.

The COVID-19 pandemic has demonstrated why all countries need to have a sustainable strategy in place to access effective and affordable vaccines, tests, and treatments, with systems in place to distribute them efficiently and equitably for the broader population.”

“Our wounds are often the openings into the best and most beautiful part of us.”

– Dr. Robert Redfield, M.D.

Our Mission

Creating a scalable, sustainable process to provide, distribute, and administer vaccine to vulnerable populations worldwide. PDTi is designed to meet this challenge, using a for-profit business model to bring equitable access of vaccine to a broad population.

Our Approach

PDTi has created the “Redfield” model, providing four levels of complimentary assistance.


Our Team

PDTi’s team has extensive experience in the science and clinical use of vaccines as well as, long-term, global contacts and government affairs experience.