Water Testing Solutions Blog

Latest news on water testing innovation

What's the Difference between MPN and CFU?

We get asked a lot of questions – as I am sure you do during the course of your day. “What is the detection limit of Colilert?” (1 organism/100mL) “Why does Legiolert only test for Legionella pneumophila?” (Because it causes 97% of Legionnaires’ disease cases.) “Where are your tests manufactured?”  (proudly developed and manufactured in Westbrook, Maine, USA.)

But the one question that we are most familiar with is ‘what’s the difference between the Most Probable Number (MPN) and a Colony Forming Unit (CFU)?’

New Study demonstrates accuracy of Legionella detection test

Legionnaires’ disease cases have gone up by 400% in the last 14 years and healthcare facilities are increasingly on the hook to reduce their patients’ risk from this potentially deadly but highly preventable form of pneumonia. Regular testing for Legionella pneumophila is the only way to be certain that a water management plan is working properly to prevent patient exposure.

Where would we be without you, Gil?

If you are a member of the water industry, chances are you know Gil Dichter. As we celebrate Gil’s retirement and look back upon his career, we can’t help but wonder where our Water business would be without his knowledge, guidance and expertise. 

Don't listen to us - hear what our customers have to say!

Our customers say it best! At IDEXX, we take great pride in providing the most innovative and accurate products to our customers all around the world. Our products are accepted or approved in 55 countries with over 130 different approvals/acceptance by more than 20 entities globally. Our US-based manufacturing plant ships out more than 22 million tests every year to 120 countries on all 7 continents. Wait - why all the shameless self-promotion? I thought this was going to be a testimonial! 

Pseudalert honored with ISO Standard designation

The IDEXX Pseudalert method has been published as the International Organization for Standardization (ISO) worldwide standard 16266-2 for the 24-hour detection of Pseudomonas aeruginosa in water. The ISO designation includes hospital waters, drinking water and swimming/spa pool waters.