🦠 Bug of the Month: Escherichia coli
Escherichia coli (E. coli for short) is a bacterium that normally lives in the intestines of humans and animals. Most strains are harmless and even helpful — they help us digest food! But when E. coli travels from the gut to the urinary tract, it can cause infection. According to the CDC, E. coli causes about 80–90% of all UTIs, making it the single biggest culprit behind urinary tract infections.
Did you know?
- E. coli was discovered in 1885 by a German pediatrician studying infant digestion.
- It's one of the most-studied organisms on Earth — scientists use it in labs worldwide because it grows fast and is easy to work with.
- E. coli isn't always bad! Most E. coli strains are harmless and normally live in our intestines. Only certain strains cause illness.
- Women get UTIs far more often than men because of shorter urethras, which give bacteria a shorter trip to the bladder.
How to Lower Your Risk
Simple daily habits can go a long way in preventing E. coli UTIs:
- Wipe front to back after using the bathroom to keep bacteria away from the urethra.
- Stay hydrated. Drinking water helps flush bacteria out of the urinary tract.
- Urinate after sexual activity. This can help flush away bacteria that may have entered the urinary tract.
- Don't hold it too long. Urinating regularly prevents bacteria from multiplying in the bladder.
- Avoid harsh soaps or douches in the genital area, which can disrupt protective bacteria.
The Resistance Problem
Like many bacteria, E. coli is becoming increasingly resistant to common antibiotics. Antibiotic resistance occurs when an antibiotic that once killed the bacteria may no longer work. This happens when bacteria are repeatedly exposed to antibiotics, and the strongest, most resistant ones survive and multiply.
You can help slow antibiotic resistance by:
- Taking antibiotics only when prescribed by a healthcare professional.
- Taking them exactly as prescribed.
- Never sharing antibiotics with someone else.
- Never saving leftover antibiotics to use for a future illness.
