Amid a 55% increase in chikungunya cases this year, the health department plans to conduct genomic sequencing on samples to detect potential mutations. Uncommon symptoms like hyperpigmentation and neurological issues have been observed in patients. In response to the significant rise in chikungunya viral fever cases this year compared to last year, the health department in Mumbai has decided to analyze some positive samples for genetic mutations in the virus through genomic sequencing. State health officials have also clarified that rare symptoms such as hyperpigmentation and neurological problems are not new but are extremely uncommon. Dr. Mahendra Jagtap from the vector control program mentioned that these symptoms could be seen in chikungunya patients with co-infections like dengue or Japanese encephalitis. A rapid action team has been established to investigate the reasons behind the increase in chikungunya cases, with guidelines issued for sending samples for further analysis to research institutes in Pune. Samples from patients showing neurological symptoms are to be sent for genomic sequencing to detect any mutations."We will begin sequencing as soon as we obtain sufficient samples, particularly from patients in the intensive care unit or those with severe symptoms," stated a healthcare professional. Private sector doctors in the city reported a significant increase in chikungunya cases this year, with some patients requiring hospitalization for extended periods to manage high fever and neurological complications. Children have also been notably impacted, such as an eight-month-old boy who was hospitalized in early August. At Surya Children's Hospital, pediatrician Dr. Bhupendra Avasthi noted that infants born to mothers with chikungunya may exhibit hyperpigmentation, a known symptom of the disease."