Don’t you just love breathing-in the clean, cool air in a building with an air conditioning system? Well, the 36 people who died and the 221 who were seriously ill at the landmark Philadelphia hotel would have told you, for a week in 1976 there was something in the air conditioning that didn’t feel right.

In July 1976, veterans were attending the US Bicentennial Convention of the American Legion. They suddenly started getting sick [...]

The average office hosts hundreds of times more bacteria than a toilet seat. We all sit here, stewing in our own putrescence while the army of microbes have us at their mercy; they are also throwing meet-and-greet parties all over our office: parties that we attend despite not strictly being invited to and parties that are monumental in size. To put their banquet in perspective, around 21,000 germs per square inch are found on work [...]

Do you have a temperature that is higher than usual? Or even feverish? Are you suffering with a headache? Have you got a nasty cough or a sore throat? Are you experiencing sinus problems, a runny or dry sniffly nose? Are you feeling very tired? Do your muscles ache? Do you feel nauseas? Have you been vomiting, or had diarrhoea?