During a significant 55% increase in chikungunya cases this year, the health department is planning to conduct genomic sequencing of samples to identify potential mutations. Uncommon symptoms like hyperpigmentation and neurological issues have been observed. The state health officials in Mumbai have reported a nearly 55% rise in chikungunya cases this year compared to the previous year and have announced plans to analyze positive samples through genomic sequencing to detect any genetic variations in the virus. Joint director Dr. Mahendra Jagtap mentioned that the emergence of unusual symptoms like hyperpigmentation and neurological problems could be related to co-infections with dengue or Japanese encephalitis, as per the guidelines issued by the Centre last year. A rapid action team has been established to investigate the reasons behind the spike in chikungunya cases from 1,702 cases in 2023 to 2,643 cases in 2024 thus far. Guidelines have been issued for the collection and analysis of samples, including sending blood samples of patients showing neurological symptoms to research institutes for further evaluation. Genomic sequencing will be crucial in determining any potential mutations in the virus."We will begin sequencing as soon as we receive sufficient samples, particularly from patients in the ICU or those with severe symptoms," stated a spokesperson. Private sector doctors in the city reported a significant increase in chikungunya cases this year, with some patients requiring hospitalization to manage their prolonged high fever and neurological complications. Children are also being affected this year, with an eight-month-old boy admitted to SRCC Children's Hospital in Haji Ali in early August. At Surya Children's Hospital in Santa Cruz, pediatrician Dr. Bhupendra Avasthi noted that children born to chikungunya-positive mothers may experience hyperpigmentation, which is a known symptom of the disease."