An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024
Background: Sporadic cases and rare outbreaks of Zika Virus (ZIKV) have been reported in India since 2016. Between June to early September 2024; the city of Pune in western India was affected with a large outbreak of ZIKV. Here we report the analysis of epidemiological; clinical and genomic characte...
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Elsevier
2025-05-01
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| Series: | Journal of Infection and Public Health |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1876034125000693 |
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| author | Gururaj Rao Deshpande Gajanan N. Sapkal Asha Salunke Rashmi Gunjikar Nitali Tadkalkar Pradnya Shinde Nidhi Daga Manjusha Gopale Ashwini Ramdasi Supriya Hundekar Kavita Lole Rohan Raj Roy Jose Antony Jenish Rashi Srivastava Shivani Parmar Pooja Pawara Kajal Jarande Shankar Vidhate Kirtee Khutwad |
| author_facet | Gururaj Rao Deshpande Gajanan N. Sapkal Asha Salunke Rashmi Gunjikar Nitali Tadkalkar Pradnya Shinde Nidhi Daga Manjusha Gopale Ashwini Ramdasi Supriya Hundekar Kavita Lole Rohan Raj Roy Jose Antony Jenish Rashi Srivastava Shivani Parmar Pooja Pawara Kajal Jarande Shankar Vidhate Kirtee Khutwad |
| author_sort | Gururaj Rao Deshpande |
| collection | DOAJ |
| description | Background: Sporadic cases and rare outbreaks of Zika Virus (ZIKV) have been reported in India since 2016. Between June to early September 2024; the city of Pune in western India was affected with a large outbreak of ZIKV. Here we report the analysis of epidemiological; clinical and genomic characteristics of the outbreak. Methods: Suspected ZIKV cases and pregnant women within 3 km radius of ZIKV positive cases and household contacts were included in the study. The study area included parts of the Pune metropolitan region. ZIKV RNA in serum and urine samples was detected by a single-plex Realtime RT-PCR assay. Representative samples were characterized by whole-genome sequencing. Results: Among clinically suspected ZIKV cases 63/433 (14.55 %); and 45/1615 (2.78 %) pregnant women surveyed; were found positive for acute ZIKV infection. Majority of positive cases were asymptomatic or had mild symptoms. Two cases reported complications of pyelonephritis and encephalitis respectively. There was no evidence of microcephaly in the fetuses of the pregnant women surveyed. The ZIKV strains were found to belong to the Asian lineage and clustered close to the Rajasthan strain reported previously in India. Mutation linked with microcephaly was not found in these sequences. Follow-up of pregnant women till October 2024 indicated 22 % (10/45) of women delivered healthy babies. Conclusion: The ZIKV strain associated with the present outbreak did not have mutations linked with microcephaly; but had mutations linked with enhanced transmission. Symptoms such as thrombocytopenia; bleeding manifestations; retro-orbital-pain; in a small subset of patients were unique; which were not reported in previous outbreaks in India. The findings highlight the urgent need for enhanced surveillance to plan strategies for public health measures to control the disease spread. Study highlights the need for monitoring the mutations and follow up of ZIKV infected pregnant women and their children to confirm absence of congenital anomalies. |
| format | Article |
| id | doaj-art-99307f3b9c7d41539976cc418db4ca2a |
| institution | OA Journals |
| issn | 1876-0341 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Journal of Infection and Public Health |
| spelling | doaj-art-99307f3b9c7d41539976cc418db4ca2a2025-08-20T02:09:40ZengElsevierJournal of Infection and Public Health1876-03412025-05-0118510272010.1016/j.jiph.2025.102720An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024Gururaj Rao Deshpande0Gajanan N. Sapkal1Asha Salunke2Rashmi Gunjikar3Nitali Tadkalkar4Pradnya Shinde5Nidhi Daga6Manjusha Gopale7Ashwini Ramdasi8Supriya Hundekar9Kavita Lole10Rohan Raj Roy11Jose Antony Jenish12Rashi Srivastava13Shivani Parmar14Pooja Pawara15Kajal Jarande16Shankar Vidhate17Kirtee Khutwad18Diagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, India; Correspondence to: Diagnostic Virology Group, ICMR, National Institute of Virology, Pune, India.Diagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaHepatitis Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaHepatitis Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaHepatitis Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaDiagnostic Virology Group, ICMR-National Institute of Virology, MCC 130/1 Sus Road, Pashan, Pune, Maharashtra 411021, IndiaBackground: Sporadic cases and rare outbreaks of Zika Virus (ZIKV) have been reported in India since 2016. Between June to early September 2024; the city of Pune in western India was affected with a large outbreak of ZIKV. Here we report the analysis of epidemiological; clinical and genomic characteristics of the outbreak. Methods: Suspected ZIKV cases and pregnant women within 3 km radius of ZIKV positive cases and household contacts were included in the study. The study area included parts of the Pune metropolitan region. ZIKV RNA in serum and urine samples was detected by a single-plex Realtime RT-PCR assay. Representative samples were characterized by whole-genome sequencing. Results: Among clinically suspected ZIKV cases 63/433 (14.55 %); and 45/1615 (2.78 %) pregnant women surveyed; were found positive for acute ZIKV infection. Majority of positive cases were asymptomatic or had mild symptoms. Two cases reported complications of pyelonephritis and encephalitis respectively. There was no evidence of microcephaly in the fetuses of the pregnant women surveyed. The ZIKV strains were found to belong to the Asian lineage and clustered close to the Rajasthan strain reported previously in India. Mutation linked with microcephaly was not found in these sequences. Follow-up of pregnant women till October 2024 indicated 22 % (10/45) of women delivered healthy babies. Conclusion: The ZIKV strain associated with the present outbreak did not have mutations linked with microcephaly; but had mutations linked with enhanced transmission. Symptoms such as thrombocytopenia; bleeding manifestations; retro-orbital-pain; in a small subset of patients were unique; which were not reported in previous outbreaks in India. The findings highlight the urgent need for enhanced surveillance to plan strategies for public health measures to control the disease spread. Study highlights the need for monitoring the mutations and follow up of ZIKV infected pregnant women and their children to confirm absence of congenital anomalies.http://www.sciencedirect.com/science/article/pii/S1876034125000693Zika virusOutbreakFlavivirusesIndiaSurveillanceAsian lineage |
| spellingShingle | Gururaj Rao Deshpande Gajanan N. Sapkal Asha Salunke Rashmi Gunjikar Nitali Tadkalkar Pradnya Shinde Nidhi Daga Manjusha Gopale Ashwini Ramdasi Supriya Hundekar Kavita Lole Rohan Raj Roy Jose Antony Jenish Rashi Srivastava Shivani Parmar Pooja Pawara Kajal Jarande Shankar Vidhate Kirtee Khutwad An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 Journal of Infection and Public Health Zika virus Outbreak Flaviviruses India Surveillance Asian lineage |
| title | An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 |
| title_full | An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 |
| title_fullStr | An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 |
| title_full_unstemmed | An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 |
| title_short | An outbreak of Zika virus in western India in the metropolis of Pune in the monsoon of 2024 |
| title_sort | outbreak of zika virus in western india in the metropolis of pune in the monsoon of 2024 |
| topic | Zika virus Outbreak Flaviviruses India Surveillance Asian lineage |
| url | http://www.sciencedirect.com/science/article/pii/S1876034125000693 |
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