Tomato flu is a case of children experiencing undiagnosed and unidentified fever. According to media reports, it is still not clear whether Tomato Fever is a viral fever or is an after-effect of chikungunya or dengue fever.
As a step against the spread of the tomato flu in one of the districts of neighbouring Kerala, a medical team is carrying out tests on those entering Coimbatore for fever, rashes and other illnesses - symptoms of such flu - at Walayar on the Tamil Nadu-Kerala border