And my favorite example of that occurred beginning in 1976, when it was discovered that the bacteria causing Legionnaires disease had always been present in natural waters, but it was the precise temperature of the water in heating, ventilating and air conditioning systems that raised the right temperature for the maximum reproduction of Legionella bacillus.
Contoh favorit saya muncul di awal tahun 1976, saat ditemukan bahwa bakteri yang menyebabkan penyakit Legionnaires selalu ada di air yang ada di alam, tapi suhu tertentu air itulah karena pemanasan, ventilasi, dan sistem pengaturan udara yang menaikkan suhu yang tepat untuk reproduksi maksimal Legionella bacillus.