This document summarizes three topics: 1) Fire blight, a bacterial disease that affects various fruit trees and plants and causes infected shoots to wilt and blacken. 2) Bleeding calf syndrome, also known as bovine neonatal pancytopaenia, a disease caused by destruction of a calf's bone marrow which produces blood cells and platelets. 3) Charaka, a principal contributor to the ancient Indian system of Ayurveda who lived around 300 BC and is considered the Father of Medicine.