This article doesn't include a comparative risk assessment. Why are you confident that pigs and chickens have a similar risk? Do you think that the idea that we are more at risk from more similar animals is mistaken?
I imagine that the risks are very different in the modern factory farming context compared to when we lived intermingled with our livestock. The disease risk may be more in the animal behavior than its physiology, for instance if pigs are more friendly or curious or dirtier than chickens or cows, or if their shit is less solid. Or if their wallows are disease reservoirs.
This article doesn't include a comparative risk assessment. Why are you confident that pigs and chickens have a similar risk? Do you think that the idea that we are more at risk from more similar animals is mistaken?
I imagine that the risks are very different in the modern factory farming context compared to when we lived intermingled with our livestock. The disease risk may be more in the animal behavior than its physiology, for instance if pigs are more friendly or curious or dirtier than chickens or cows, or if their shit is less solid. Or if their wallows are disease reservoirs.