December 13, 2020 AS SCIENTISTS and pharmaceutical companies in rich countries around the world are racing for the development and application of vaccine against the killer coronavirus disease (Covid-19), a Filipino Dominican priest-microbiologist based in the United States has also decided to make a vaccine that will be affordable and accessible to other middle to low income countries, including the Philippines. “I thought about developing this vaccine when I realized that many of the available vaccines being manufactured today have already been promised to resource-rich countries,” said Father Nicanor Austriaco, chief researcher at Austriaco Laboratory. Austriaco, who is associate professor of biology and theology at Providence College in Providence, Rhode Island, USA, said his proposal is to create an oral Covid-19 vaccine using a probiotic yeast.