The most sensitive index for surveillance of malaria transmission is -: (A) Spleen rate, (B) Parasite density index, (C) Infant parasite rate, (D) Propoional case rate
Answer is C. - infant parasite rate is defined as the percentage of infants below the age of one year showing malaria parasites in their blood films. - It is regarded as the most sensitive index of transmission of malaria in a locality. Reference : Park's textbook of preventive and social medicine, 23rd edition pg no: 261 <\p>