Market Overview

The global legionella testing market size was valued at USD 366.5 Million in 2024 and is projected to reach USD 658.2 Million by 2033. The market is expected to grow at a CAGR of 6.66% during the forecast period of 2025-2033. Growth is driven by the rising prevalence of legionella infections and the increasing demand for diagnostic testing in workplace buildings with supportive health policies promoting water safety.

Study Assumption Years

• Base Year: 2024
• Historical Years: 2019-2024
• Forecast Period: 2025-2033

Legionella Testing Market Key Takeaways

• The global legionella testing market size was USD 366.5 Million in 2024.
• The market is expected to grow at a CAGR of 6.66% during 2025-2033.
• Europe accounts for the largest market share in the global legionella testing market.
• Water testing holds the largest share among applications, driven by the need for comprehensive water quality assessments.
• Diagnostic laboratories currently represent the largest end-user segment, due to the requirement for timely and accurate testing.
• The market is stimulated by increasing clinical trials and investments in R&D related to pneumonia treatment and diagnostic strategies.

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Market Growth Factors

The growing demand for legionella testing in workplace buildings is a significant driver of market growth. This is complemented by the introduction of favorable policies by health agencies aimed at developing comprehensive water safety plans (WSPs), which help control the proliferation of Legionella bacteria. Additionally, the rising population of individuals with chronic diseases such as diabetes, kidney disease, HIV, and cancer is increasing hospitalization risks, thereby stimulating the need for legionella testing to prevent infections.

Legionellosis, a pneumonia-like illness caused by Legionella bacteria, is rising in prevalence globally, propelling market growth. For example, in 2023, Poland reported 166 cases including 23 deaths, and Lithuania investigated a surge in Legionnaires' disease cases. Legionella bacteria thrive in aquatic environments found in respiratory equipment, cooling towers, and water systems, highlighting the need for regular testing and water quality management to prevent outbreaks.

Technological advancements are strengthening the market, with novel molecular diagnostics and rapid test methods improving testing accuracy and speed. Sensitive PCR-based methods and real-time PCR detection kits are increasingly adopted, replacing conventional culture systems. Furthermore, AI integration allows for prediction and identification of Legionella outbreaks by analyzing environmental data such as flow rates and temperature. These innovations are driving demand and market growth worldwide.

Market Segmentation

By Application:

• Water Testing: Includes microbial culture, DFA stain, PCR, and others. It currently holds the majority market share due to the need for regular and comprehensive assessments in facilities like hotels, hospitals, and commercial buildings, preventing stagnant water-related contamination.
• IVD Testing: Comprises blood culture, urine antigen test, DFA stain, PCR, and others, used for diagnostic purposes in clinical settings.

By End User:

• Diagnostic Laboratories: Represent the largest segment, driven by the demand for timely, accurate testing methods such as PCR and culture techniques, ensuring prompt diagnosis and intervention.
• Hospital and Clinics: Utilize legionella testing for patient management and infection control.
• Others: Include other non-specified end-users incorporating legionella testing in their operations.

Regional Insights

Europe dominates the global legionella testing market, supported by a high demand for public health campaigns and educational programs promoting legionella testing services. The region faces a rising prevalence of Legionella infections, with confirmed outbreaks leading to increased mortality, such as 194 deaths reported in France in 2022. Stringent regulations enforce bi-annual testing in healthcare facilities, and advanced testing technologies like qPCR are widely adopted. Companies like Eurofins Scientific and SGS SA provide cutting-edge testing services enhancing market growth.

Recent Developments & News

• May 2024: The Dubai Central Laboratory launched an artificial intelligence technology to detect Legionella pulmonary bacteria efficiently.
• February 2024: Normec Maritime Testing Services (MTS) introduced a user-friendly method enabling crew members to take water samples independently.
• January 2024: The U.S. General Services Administration conducted water testing across federal buildings to ensure health and safety.

Key Players

• Abbott Laboratories
• Bio-Rad Laboratories, Inc.
• Eiken Chemical Co., Ltd.
• IDEXX
• Pro-Lab Diagnostics
• Qiagen N.V
• QuidelOrtho Corporation
• Thermo Fisher Scientific Inc.

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