"Fewer people have been turning up" at emergency hospital units with serious medical conditions during the coronavirus, according to a consultant cardiologist at Morriston Hospital.
Dr James Barry says people have been delaying coming into the hospital with cardiac problems such as chest pains because of the outbreak.
There are also fears people are avoiding pharmacies, and could be putting their lives at risk as a result.
If anyone is experiencing chest pains or difficulty breathing, the advice is to call 999 and not to put off being seen by medical experts.
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