colonies « Back to Glossary IndexA mound of microorganisms growing on a plate Related Articles: 18 – 2 Introduction to pathogenesis18 – 4 Bordetella pertussis causes whooping cough and was a major killer of children18 – 5 Streptococcal diseases are major causes of infectious disease18 – 7 The microbes of the tuberculosis complex are slow-growing pathogens that gradually destroy the host18 – 9 Corynebacterium diphtheriae is the cause of diphtheria« Back to Glossary Index