Biosecurity is a word describing procedures to protect people from biological dangers such as infectious diseases. It includes measures designed to prevent new diseases evolving such as emerging threats of bird flu and other diseases.
Factory farms pose significant biosecurity risks to all people globally. Phasing them out will prevent many infectious disease threats to humans and animals. It will also reduce the risks of new diseases emerging.
AJP advocates a reduction in the interference with wildlife and its habitat. This reduces the risk of spreading infectious diseases carried by wildlife.