Bhopal, May 1 -- The death of a tigress and her four cubs within 10 days in Madhya Pradesh's congested Kanha Tiger Reserve, one of India's most iconic tiger habitats, has led officials to suspect an outbreak of Canine Distemper Virus (CDV) . L Krishnamurthy, the state's additional principal chief conservator of forest said: "The cause of death of the tigress and her cubs was respiratory disorder and gastrointestinal infection, but we cannot rule out CDV. Samples have been sent for confirmation, and preventive measures are underway." Both are symptoms of CDV. Forest department officials said they have begun monitoring other tigers in the wild following the deaths. Kanha reserve field director Prakash Verma said samples of the tigress and cub...