Respiratory Syncytial Virus (RSV) was identified in a number of children before the age of 5 years. If the rate of lower respiratory infections were 200/500 children less than 5 years of age, What inferences can we make about this statement in relation to incidence and prevalence?
1) That children are two times more likely to develop RSV.
2) Limited inferences as this example provides limited information about incidence and prevalence for infection among children.
3) The incidence of RSV among children under 5 years is 40
4) Cannot be determined from the given information.