Timeline Event - year 2000 Allergens found in mite droppings are also found in the fluid surrounding unborn babies   A paper is published reporting that mite allergens have been identified in the fetal fluid and circulation of newly born infants. Reference ‘Detection of House Dust Mite allergen in amniotic fluid and umbilical-cord blood’; Holloway J A, Warner J O, Vance G H S, Diaper N D, Warner J A, Jones C A ,The Lancet, 2000, Issue 9245, 1900-1902.