Measles elimination criteria are all except ?

Ans. is 'd' i.e., Transmission at low level WHO defines elimination of measles as the absence of endemic measles for a period of 12 months in the presence of adequate surveillance. One indicater of measles elimination is a sustained measles incidence < 1/100, 000 population. In 2005, the World Health Assembly set a goal of achieving a 90% reduction in global measles moality by 2010 as compared with level in 2000.