Commentary: Some of the dirtiest items in your life are the ones you might least expect
But here's the catch: Some of the dirtiest items in your life are the ones you might least expect.
Here are some of the hidden bacteria magnets in your daily routine, and how simple hygiene tweaks can protect you from infection.
SHOPPING TROLLEY HANDLES
Shopping trolleys are handled by dozens of people each day, yet they're rarely sanitised. That makes the handles a prime spot for germs, particularly the kind that spread illness.
One study in the United States found that over 70 per cent of shopping carts were contaminated with coliform bacteria, a group that includes strains like E. coli, often linked to faecal contamination. Another study found Klebsiella pneumoniae, Citrobacter freundii and Pseudomonas species on trolleys.
Protect yourself: Always sanitise trolley handles before use, especially since you'll probably be handling food, your phone or touching your face.
KITCHEN SPONGES
That sponge by your sink? It could be one of the dirtiest items in your home. Sponges are porous, damp and often come into contact with food: ideal conditions for bacteria to thrive.
After just two weeks, a sponge can harbour millions of bacteria, including coliforms linked to faecal contamination, according to the NSF Household Germ Study and research on faecal coliforms.
Protect yourself: Disinfect your sponge weekly by microwaving it, soaking it in vinegar, or running it through the dishwasher. Replace it if it smells – even after cleaning. Use different sponges for different tasks (for example, one for dishes, another for cleaning up after raw meat).
CHOPPING BOARDS
Chopping boards can trap bacteria in grooves left by knife cuts. Salmonella and E. coli can survive for hours on dry surfaces and pose a risk if boards aren't cleaned properly.
Protect yourself: Use separate boards for raw meat and vegetables. Wash thoroughly with hot, soapy water, rinse well and dry completely. Replace boards that develop deep grooves.
TEA TOWELS
Reusable kitchen towels quickly become germ magnets. You use them to dry hands, wipe surfaces and clean up spills – often without washing them often enough.
Research shows that E. coli and salmonella can live on cloth towels for hours.
Protect yourself: Use paper towels when possible, or separate cloth towels for different jobs. Wash towels regularly in hot water with bleach or disinfectant.
MOBILE PHONES
Phones go everywhere with us – including bathrooms – and we touch them constantly. Their warmth and frequent handling make them ideal for bacterial contamination.
Research shows phones can carry harmful bacteria, including Staphylococcus aureus.
Protect yourself: Avoid using your phone in bathrooms and wash your hands often. Clean it with a slightly damp microfibre cloth and mild soap. Avoid harsh chemicals or direct sprays.
TOOTHBRUSHES NEAR TOILETS
Flushing a toilet releases a plume of microscopic droplets, which can land on nearby toothbrushes. A study found that toothbrushes stored in bathrooms can harbour E. coli, Staphylococcus aureus and other microbes.
Protect yourself: Store your toothbrush as far from the toilet as possible. Rinse it after each use, let it air-dry upright and replace it every three months – or sooner if worn.
BATHMATS
Cloth bathmats absorb water after every shower, creating a warm, damp environment where bacteria and fungi can thrive.
Protect yourself: Hang your bathmat to dry after each use and wash it weekly in hot water. For a more hygienic option, consider switching to a wooden mat or a bath stone: a mat made from diatomaceous earth, which dries quickly and reduces microbial growth by eliminating lingering moisture.
PET TOWELS AND TOYS
Pet towels and toys stay damp and come into contact with saliva, fur, urine and outdoor bacteria. According to the US national public health agency, the Centers for Disease Control and Prevention, pet toys can harbour E. coli, Staphylococcus aureus and Pseudomonas aeruginosa.
Protect your pet (and yourself): Wash pet towels weekly with hot water and pet-safe detergent. Let toys air dry or use a dryer. Replace worn or damaged toys regularly.
SHARED NAIL AND BEAUTY TOOLS
Nail clippers, cuticle pushers and other grooming tools can spread harmful bacteria if they're not properly cleaned. Contaminants may include Staphylococcus aureus – including MRSA, a strain resistant to antibiotics – Pseudomonas aeruginosa, the bacteria behind green nail syndrome, and Mycobacterium fortuitum, linked to skin infections from pedicures and footbaths.
Protect yourself: Bring your own tools to salons or ask how theirs are sterilised. Reputable salons will gladly explain their hygiene practices.
AIRPORT SECURITY TRAYS
Airport trays are handled by hundreds of people daily – and rarely cleaned. Research has found high levels of bacteria, including E. coli.
Protect yourself: After security, wash your hands or use sanitiser, especially before eating or touching your face.
HOTEL TV REMOTES
Studies show hotel remote controls can be dirtier than toilet seats. They're touched by many hands and rarely sanitised.
Common bacteria include E. coli, enterococcus and Staphylococcus aureus, including MRSA, according to research.
Protect yourself: Wipe the remote with antibacterial wipes when you arrive. Some travellers even put it in a plastic bag. Always wash your hands after using shared items.
Bacteria are everywhere, including on the items you use every day. You can't avoid all germs, and most won't make you sick. But with a few good habits, such as regular hand washing, cleaning and smart storage, you can help protect yourself and others.
It's all in your hands.
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