Revolutionizing Legionella Water Testing with MICA Advance

Ensuring water safety is a growing priority for public health officials, facilities managers, and testing laboratories alike. Legionella pneumophila—the primary cause of Legionnaires’ disease—is particularly concerning because it thrives in warm water systems and can pose significant risks when inhaled as aerosols. Given the rising incidence of legionellosis worldwide, accelerated and more effective detection methods are in high demand.

A growing public health concern

Legionella, a waterborne pathogen responsible for Legionnaires’ disease, is an increasing global health concern, with cases steadily rising across Europe and the United States. The most dangerous strain, Legionella pneumophila, accounts for over 90% of reported cases, posing a major public health threat. While all 16 serogroups can cause infection, serogroups 2-16 are behind up to 54% of cases, and only culturable L. pneumophila are dangerous. Naturally found in warm water sources like lakes and rivers (25°C-45°C), L. pneumophila thrives under such conditions. Factors like urbanization and climate change exacerbate the spread, creating ideal environments for the bacteria in man-made water systems, including cooling towers and domestic hot water networks.  According to the CDC, 90% of infections are preventable with better testing and proactive measures. To improve prevention, it is essential to control water temperature, flush systems regularly, and conduct more effective and rapid testing for culturable L. pneumophila across all serogroups. In response, the European Union introduced a revised Drinking Water Directive (DWD) in 2021, imposing stricter monitoring and control of Legionella in water systems. Member states must choose appropriate methods in line with national guidelines within two years.

Legionella Detection Challenge

Traditional Legionella testing methods, though reliable, present significant drawbacks. The ISO 11731 gold standard requires a prolonged incubation period of 7 to 10 days, or even longer, delaying results and risk mitigation efforts. Moreover, these methods are resource-intensive, involving complex protocols, extensive manual handling, and highly trained personnel. This combination of challenges can hinder timely responses to contamination, increasing operational costs and public health risks.  The industry’s need for faster, cost-effective, and accurate testing solutions has never been more urgent. Any viable alternative must not only match the sensitivity and specificity of ISO standards but also address the inefficiencies inherent in traditional methods.

MICA Advance Legionella

To address this, DIAMIDEX developed MICA Advance, an advanced solution that combines microbial tagging, optics, and machine learning to identify and quantify all serogroups of culturable Legionella pneumophila within 48 hours. This non-destructive method detects bacteria at the microcolony stage, providing results in CFU/membrane and follows the ISO 11731 reference procedure.  MICA Advance minimizes manual intervention by automating analysis, ensuring high specificity and sensitivity, even for complex samples. With a throughput of up to 500 analyses per shift, it streamlines laboratory workflows, making it an essential tool for modern microbiological testing and quality control.

Why Choose MICA Advance Legionella?

The MICA Advance Legionella system is globally recognized by by its current customers for its speed, accuracy, and reliability, transforming water quality management. Aquaprox in France has been using it for 4 years, highlighting its ability to proactively detect Legionella on sensitive circuits. Dubai Central Laboratory in the UAE praises its rapid and reliable results. BLC Limited in Macau reports streamlined testing, reduced lab requirements, and eased staff workload, while CARIRI in the Caribbean emphasizes faster local testing that enables data-driven decisions. Backed by validations from the AOAC and institutions in China, Europe, and the U.S., MICA Advance delivers ensure global performance and customer satisfaction, even in geographical areas where the regulation is based on Legionella spp.   According to customer testimonials, the adoption of MICA Advance offers unparalleled advantages over conventional methods:

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