Pune is currently facing a concerning outbreak of the Zika virus, with 75 confirmed cases reported across the city. Notably, the majority of these cases—30 in total—have been found in the Erandwane and Dahanukar Colony areas. These areas have become hotspots for the virus, with experts confirming that there is active transmission occurring.
Active Transmission Detected in Key Areas
According to the Pune Municipal Corporation (PMC), Erandwane and Dahanukar Colony have reported the highest number of Zika virus cases. Experts believe this is due to active transmission within these localities, meaning the virus is spreading from person to person or through mosquito bites within the community. The Indian Council of Medical Research (ICMR)-National Institute of Virology (NIV) in Pune conducted studies in July and found the presence of the Zika virus in both adult mosquitoes and larvae collected from these areas. This discovery underscores the urgency of cutting down the transmission in these zones to bring the outbreak under control.
Expert Warnings and the Need for Vector Control
Dr. Mahendra Jagtap, a state entomologist with the Public Health Department, emphasized the critical situation in these areas. He stated, “Erandwane and Dahanukar colony have reported a large number of cases indicating there is active transmission of Zika virus in this area and even the mosquito samples have tested positive for the virus infection.” Dr. Jagtap highlighted the need for immediate vector control measures, which involve reducing the mosquito population to prevent further spread of the virus. He also noted that the large number of cases shows that the screening and surveillance programs are being conducted properly.
Initial Cases and Spread Across the City
The first Zika virus cases in Pune were reported by the PMC in a 46-year-old doctor from Erandwane and his 15-year-old daughter. Since then, the number of cases has risen to 75, including 33 expecting mothers. The remaining areas of the city have reported relatively fewer cases: Kharadi with 10, Ghole Road ward with 7, Mundhwa and Pashan with 5 each, Sukhsagarnagar with 6, and Ambegaon, Dhole Patil Road, and Kalas with 3 cases each. Wanowrie has reported just one case. Additionally, four suspected deaths related to the Zika virus have been reported in the city, with one each in Baner, Kharadi, Warje, and Kothrud.
Challenges in the Affected Areas
Dr. Suryakant Devkar, the assistant health officer of the PMC, pointed out that the two hardest-hit areas, Erandwane and Dahanukar Colony, are located within just one-and-a-half kilometers of each other. He explained, “The population in these areas is an elite population with most of them frequent international travellers. The source of the infection was not found. Initially, due to less awareness in the public, the citizen’s participation was poor. Later additional staff was deployed for the Zika surveillance in the affected area.” This highlights the challenges faced in controlling the outbreak, particularly in areas with high mobility and frequent international travel.
Increased Efforts to Control the Spread
To curb the spread of the Zika virus, authorities are emphasizing the need for immediate and focused efforts, particularly in the most affected areas. Public health measures, including intensified surveillance and mosquito control programs, are being ramped up to bring the situation under control. Despite these efforts, the virus has been reported in 12 out of the 15 ward jurisdictions of the PMC, indicating the widespread nature of the outbreak.
Special Attention to Expecting Mothers
The health authorities are particularly concerned about the impact of the Zika virus on expecting mothers. Dr. Radhakrishnan Pawar, joint director of health services and the state head of the vector-borne disease control program, has issued instructions to the PMC to conduct thorough surveillance and contain mosquito breeding within a five-kilometer radius of the affected areas. He stressed, “Zika virus infection is self-limiting in the majority of cases but can cause serious health issues to fetuses in expecting mothers. The orders have been given to test all expecting mothers in the active Zika transmission area.” This highlights the critical need to protect pregnant women from the virus due to the serious risks it poses to unborn children.
Genetic Analysis of the Virus
In June, scientists from the ICMR-NIV in Pune conducted whole genome sequencing of the Zika virus from blood samples of infected patients in Erandwane. The results revealed that the virus belongs to the Asian strain or genotype, providing important information for understanding the outbreak and planning control measures.
Lack of Entomologists in the PMC
One of the significant challenges faced by the PMC in managing the outbreak is the lack of entomologists, who are experts responsible for studying and controlling mosquito populations. The city has been without a single entomologist for the past eight years. After the Zika cases were reported, the Public Health Department provided entomologists to conduct necessary surveys, but this gap in resources has highlighted the need for more permanent solutions.
Testing of Expecting Mothers
Despite guidelines from the Ministry of Health and Family Welfare (MoHFW) to test all pregnant women in Zika-affected areas, the PMC’s initial efforts were limited. By July 11, only 5% of expecting mothers in the active transmission areas had been tested. Following this, Dr. Pawar issued a directive to test all expecting mothers within a five-kilometer radius of the affected zones. Currently, there are 4,210 pregnant women living in the active Zika transmission areas of Pune, and as of the latest reports, 664 of them (about 16%) have been tested for the virus.
The Zika virus outbreak in Pune, particularly in the Erandwane and Dahanukar Colony areas, is a significant public health concern. With active transmission confirmed, authorities are focusing on vector control and increased testing, especially for expecting mothers, to bring the situation under control. The lack of entomologists and the initial slow response in testing pregnant women highlight the challenges faced, but ongoing efforts aim to curb the spread of the virus and protect the city’s residents.
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