The question came up about why some animals such as cats, dogs and ferrets as well as humans can get the virus but bovine and swine do not. Researchers led by Professor Singh and his team which included Professor Rajinder Dhindsa (McGill University), Professor Baljit Singh (University of Calgary) and Professor Vikram Misra (University of Saskatchewan) decided to explore this question.
What they found is that those animals who can get the virus have two cycteine amino acids while those who do not only have one. This discovery will most likely lead to a cure for the virus. This is exciting news. Please read the whole article for a more in-depth explanation of how this works.