Unrequited attraction: why mosquitos love you

Your gut microbes play a part in one of summer's most annoying trends

Everyone who has ever been camping or sitting outside on a hot summer’s evening will know how insects seem to prefer some people’s flesh to others. Some unlucky souls are totally covered in itchy red blotches and others are miraculously spared. Sometimes only some family members are affected. My mother has never been bitten by a mosquito (though fleas l…