In an outbreak of cholera in a village of 2000 population 20 cases have occured and 5 have died. Case fatality rate is: (A) 1%, (B) 0.25%, (C) 5%, (D) 25%
Answer is D. Ref: Parks 23rd edition Case fatality rate = (Total no. of deaths due to a paicular case / Total no. of cases due to the same disease) x 100 Here, CFR = (5/20) x 100= 25%