Why researchers say developing a vaccine for ASF will take years
Despite being a relatively stable virus, vaccine development for ASF has proven especially challenging
Researchers have spent decades attempting to develop a vaccine for African swine fever (ASF), without success.
Some of the first attempts took place in the 1960s. Researchers in Spain injected pigs with a weakened virus that initially protected against ASF, but that ultimately caused the swine to come down with…