During a significant 55% increase in chikungunya cases this year, the health department is planning to conduct genomic sequencing on samples to identify potential mutations. Uncommon symptoms like hyperpigmentation and neurological issues have been observed. The rise in chikungunya cases in 2024 compared to the previous year has prompted health officials to focus on genomic sequencing of positive samples to detect any genetic changes in the virus. Health authorities have clarified that rare symptoms such as hyperpigmentation and neurological problems are not entirely new but are highly uncommon. These symptoms could manifest in cases where chikungunya patients are also infected with dengue or Japanese encephalitis, according to Dr. Mahendra Jagtap, a joint director involved in the vector control program. A rapid action team has been established to investigate the reasons behind the surge in chikungunya cases, with specific guidelines issued for collecting samples for further analysis at research institutes. Samples showing neurological symptoms or hyperpigmentation are to be sent for analysis to the National Institute of Virology and B J Medical College in Pune. Genomic sequencing will be crucial in identifying any potential mutations, as discussed by Dr. Rajesh Karyakarte from B J Medical College."We will begin sequencing once we have sufficient samples, particularly from patients in the intensive care unit or with severe symptoms," a spokesperson stated. Private sector doctors in the city noted a significant increase in chikungunya cases this year, with some patients requiring hospitalization for up to 10 to 15 days due to high fever and neurological issues. This year, children have also been affected, with an eight-month-old boy being admitted to SRCC Children's Hospital in Haji Ali in August. At Surya Children's Hospital in Santa Cruz, pediatrician Dr. Bhupendra Avasthi observed that children born to chikungunya-positive mothers are showing hyperpigmentation as a symptom, although hyperpigmentation is a known symptom of chikungunya.