Rukshar Khatoon, from Sahapara, Howrah District, West Bengal, has joined Saiban Bibi, a Bangladeshi beggar living on a platform of the railway station at Karimganj, Assam, and an unnamed cow grazing in Tamil Nadu, as markers of the success of vaccination programmes in India, successes which confounded all the critics. Rukshar was 18 months old when she developed paralytic polio in January 2011. Saiban was 30 when she developed smallpox on 24 May 1975. The Tamil Nadu cow developed rinderpest in September 1995. All three diseases are now extinct in India.