Vaccine technology has been developing rapidly for a couple of decades. Biologists could leverage developments earlier conrona viruses like SARS-1 and MERS. Tho

Vaccine technology has been developing rapidly for a couple of decades. Biologists could leverage developments earlier conrona viruses like SARS-1 and MERS. Those were controlled before vaccines were deployed. The tough nut are retroviruses like HIV. 40 years without a HIV vaccines. Though the related feline virus has a vaccine.