Even as African swine fever (ASF) establishes itself just a few hundred miles off the coast of Florida in the Dominican Republic, progress is being made on a vaccine candidate that is now seeing large scale testing in Vietnam.

Called the I177L vaccine, limited herd trials conducted by Vietnam-based Navetco labs and the Vietnam Ministry of Agriculture and Rural Development have shown it is up to 95% effective at preventing hogs from contracting ASF in the short term and at least 80% effective after three and a half months. Additionally, the vaccine shows very little “shedding” of...