Central sulcus of the human brain. Gray's FIG. 726â Lateral surface of left cerebral hemisphere, viewed from the side. The central sulcus is a fold in the cerebral cortex of brains in vertebrates. Also called the central fissure, it was originally called the fissure of Rolando or the Rolandic fissure.
Duck plague, on the other hand, is a disease caused by the herpes virus and is one of the most highly contagious duck diseases there is. Infected birds are sluggish, have ruffled feathers and greenish-yellow diarrhea that are sometimes stained with blood.ne of the most troublesome duck diseases is fowl cholera. This disease is caused by a bacterium called Pasteurella multocida and is often associated with poor sanitation. The symptoms include diarrhea, mucous discharges and loss of appetite.
Influenza pandemics occur when a new strain of the influenza virus is transmitted to humans from another animal species. Species that are thought to be important in the emergence of new human strains are pigs, chickens and ducks.nfluenza, commonly known as the flu, is an infectious disease of birds and mammals caused by an RNA virus of the family Orthomyxoviridae (the influenza viruses). In humans, common symptoms of influenza infection are fever, sore throat, muscle pains, severe headache, coughing, and weakness and fatigue.