It was first spotted in May in the southern state of Kerala and it is feared to be a new variant of hand, foot, and mouth disease. Experts are also probing whether it is a mosquito-borne infection.It was first spotted in May in the southern state of Kerala and it is feared to be a new variant of hand, foot, and mouth disease. Experts are also probing whether it is a mosquito-borne infection.Read MoreHealth News | Mail Online