The provided video gives a basic overview of Leukocytosis, its types, neutrophilia, eosinophilia, basophilia, lymphocytosis, its symptoms, diagnosis and treatments. TIMELINE: 0:00 Introduction 0:10 What is leukocytosis? 0:45 Definition 1:00 Types of leukocytosis 1:22 Neutrophilic leukocytosis/Neutrophilia 1:44 Eosinophilia 2:02 Basophilia 2:20 Lymphocytosis 2:40 Symptoms 3:06 Diagnosis 3:30 Treatment 4:16 Summary