News

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Mosquito Counts Fall as Control Efforts Continue
08 October 2026 | Press Release
This is encouraging progress, but mosquito numbers remain high. The improvement is unlikely to be noticeable to the public at this stage, with elevated biting rates continuing and heavy biting still reported in some areas.
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MRCU Advises of Expected Increase in Mosquito Activity
29 September 2026 | Press Release

The Mosquito Research and Control Unit (MRCU) is advising residents across all three Cayman Islands to expect an increase in mosquito activity over the coming days, following higher than normal tides in wetland areas combined with increased rainfall.

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MRCU Launches Aerial Larviciding Operation Across Grand Cayman
11 September 2026 | Press Release

The operation will begin the West Bay and progressively move east across the island. It is expected to take approximately one week to complete, weather permitting

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MRCU Shares Expertise at International Mosquito Control Symposium in Oman
02 September 2026 | Press Release

MRCU and the University of Glasgow were the only international organisations invited to participate and present at the symposium

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MRCU Continues Response As Seasonal Mosquito Numbers Remain Elevated
04 August 2026 | Press Release

Elevated tides have repeatedly pushed water into large areas of low-lying wetland, including locations that may remain dry for extended periods. This creates ideal conditions for large numbers of dormant mosquito eggs to hatch at approximately the same time

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Seasonal Increase in Mosquito Activity Expected Across Grand Cayman
16 July 2026 | Press Release

This will be the second noticeable increase during the current mosquito and rainy season and is consistent with the seasonal conditions typically experienced at this time of year

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MRCU Officer Helps Resident Receive Urgent Care
13 July 2026 | Press Release

“I was quite ill, and he noticed that I wasn't breathing well at all. He insisted that he wasn't going to leave until the ambulance arrived because no one else was there with me.” –Ms. Viv

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MRCU Staff Complete Training to Support Safe and Effective Mosquito Control
26 June 2026 | Press Release

Unit (MRCU) recently participated in the department's annual safety and professional development workshop, strengthening their knowledge of industry best practices and reinforcing MRCU's commitment to continuous learning, workplace safety and operational excellence

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MRCU Battles Elevated Mosquito Numbers as Data Shows Encouraging Decline
25 June 2026 | Press Release

Despite the challenges, MRCU remains optimistic as the data show mosquito numbers trending down. However, with the recent rainfall, additional mosquito emergences are expected. Mosquito numbers commonly increase around 10 days after heavy rainfall events, depending on the amount of standing water and conditions in breeding areas

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To see articles published before May 2025, visit: mrcu.cigarchives.gov.ky