Health Concerns: Can Contaminated Money Affect Your Breakfast? - Family Medicine

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I would like to ask the doctor: If a breakfast shop collects money and does not wash their hands before preparing food, could the bacteria or viruses on the money cause discomfort after eating? Additionally, if the money comes into contact with cooked food, can the food still be consumed after heating? Will the bacteria or viruses be reduced as a result? I read an article online stating that bacteria or viruses on money can only be transmitted through open wounds and not through the gastrointestinal tract.
Is this credible?

Niming, 20~29 year old female. Ask Date: 2017/03/28

Dr. Chen Taicheng reply Family Medicine


● Poor hand hygiene can transfer viruses and bacteria to food, causing gastrointestinal discomfort for consumers; however, the dietary habits and gastrointestinal health of Taiwanese people are generally well-trained in the current dining environment.
● Cooking food thoroughly can kill most viruses and bacteria, but some toxins produced by bacteria (such as Staphylococcus aureus) may not be eliminated even at high temperatures.
● The bacterial or viral composition on money can be quite complex, depending on the number of handlers, their living environments and habits, and the adaptability of the pathogens, making it difficult to generalize.
For instance, Staphylococcus aureus can also be present on banknotes and can still cause food poisoning.
For reference, please see the news excerpt: https://goo.gl/n1vVik.
● It is advisable to carefully select vendors that prioritize food hygiene and to avoid consuming expired or questionable food.
Raw foods should also be avoided as much as possible.
● Wishing you good health, Dr.
Chen Tai-Cheng from Taoyuan Hospital's Family Medicine Department cares about you~

Reply Date: 2017/03/28

More Info


When it comes to the health concerns surrounding contaminated money and its potential impact on food safety, particularly regarding breakfast foods, there are several important factors to consider.
Firstly, it is well-documented that currency can harbor a variety of pathogens, including bacteria and viruses. Studies have shown that money can be contaminated with germs from various sources, including skin flora, respiratory droplets, and even fecal matter. This contamination can occur through the handling of money by multiple individuals, many of whom may not practice proper hand hygiene. Therefore, if a food vendor handles money and then prepares food without washing their hands, there is a risk of transferring these pathogens to the food, which could lead to foodborne illnesses.

In terms of your specific question about whether consuming food prepared after handling money without handwashing could lead to discomfort, the answer is yes. If the vendor does not wash their hands after handling money, they could potentially transfer harmful bacteria or viruses to the food. This could result in gastrointestinal issues such as nausea, vomiting, diarrhea, or more severe foodborne illnesses, depending on the pathogens involved.

Regarding your question about reheating food that has come into contact with contaminated money, it is important to note that while cooking can kill many bacteria and viruses, it does not guarantee the complete elimination of all pathogens. Some bacteria produce heat-resistant spores, and certain viruses may not be effectively neutralized by cooking. Therefore, while reheating food may reduce the number of pathogens, it does not completely eliminate the risk if the food was initially contaminated.

As for the claim that germs from money can only be transmitted through open wounds and not through the gastrointestinal tract, this is misleading. While it is true that pathogens can enter the body through cuts or abrasions, many pathogens can also be ingested. For instance, if contaminated hands touch food, and that food is consumed, the pathogens can enter the gastrointestinal system, leading to illness. The gastrointestinal tract is a common route for many pathogens, including those that cause food poisoning.

To mitigate the risks associated with contaminated money and food preparation, it is advisable to follow these precautions:
1. Hand Hygiene: Ensure that food vendors practice proper hand hygiene, including washing hands thoroughly with soap and water after handling money and before preparing food.

2. Food Safety Practices: Vendors should adhere to food safety guidelines, including using gloves when handling food and ensuring that surfaces and utensils are clean.

3. Consumer Awareness: As a consumer, you can also take precautions by washing your hands before eating, especially if you have handled money or touched surfaces in public places.

4. Reheating Food: If you suspect that food may have been contaminated, it is best to avoid consuming it altogether, even if it is reheated. When in doubt, it is safer to discard the food.

In conclusion, while money can be a vector for pathogens, the risk of illness can be minimized through proper hygiene practices by both food vendors and consumers. It is essential to be aware of these risks and take appropriate measures to ensure food safety.

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