Protected farming farms carefully avoid the creation of diseases, especially those transmissible by wildlife, which is the primary cause of epidemics, along with accidental factors resulting from contamination with germs and bacteria introduced through carelessness on the part of those working there. The most risk-protected herds are those that do not involve going outdoors. If any animal that falls ill (including humans) is placed in the presence of others, it is obvious that the possibility of contagion increases. This is the same reason why a child who falls ill is treated and is avoided in contact with others in the family or at school. While it is true that animals (including humans) that lead ‘rustic’ lives may have more natural antibodies than those that live in ‘protected’ environments, it is also true that this is precisely why protected herds are protected.