In the course of feral cat work, we come across a number of diseases, and we take a quick look at one of them here - Feline Immunodeficiency Virus or FIV.

Another condition that is often prevalent in feral colonies, or where a large number of cats live in close quarters, is FIP - Feline Infectious Peritonitis.

Feline Leukaemia Virus is a serious disease in cats and estimates state that 80-90% of infected cats die within 3-4 years of FeLV diagnosis.

Cat Flu is commonly found in large groups of cats living in close contact. Here we look at the main causes of infection - Feline Calicivirus (FCV) and Feline Herpes Virus (FHV, or FHV-1).