Contagion - A general term for any disease-causing infectious agent spread by direct or indirect contact.⏎
Encephalitis - Inflammation of the brain, often caused by a virus.⏎
Cytokine - A type of protein secreted by cells in the immune system that carries signals that facilitate cell-to-cell communication and help regulate the way the immune system responds to inflammation and infection.⏎
Genetics - A branch of biology that studies heredity and variation in organisms.⏎