True statement about ElTor vibrio is

El Tor Vibrio:*The severity of illness- much less, with large propoion of mild and asymptomatic infections*Moality was low and the carrier rate high*El Tor vibrio tended to remain endemic in many new geographic areas, causing periodic epidemics*Proved to be much hardier than the classical vibrios, capable of surviving in the environment for much longer(Ref: Ananthanarayan 9th edition, p308)