GET SHOT OF MAN FLU

Cold and flu season is upon us – but the misery of illness isn’t inevitable. Sidestep sickness and stay healthy by steering clear of enemy turf

Knowing the danger zones is the best policy for dodging illness – well, that and washing your hands. To find out for certain where the germs are lurking, we wielded an ATP luminometer around the streets of London. Living cells use ATP molecules for energy, so the more there are on a surface, the greater the biological activity. In other words, the higher the reading, the more abundant the bugs.