What is Multiple Sclerosis

What is Multiple Sclerosis? Multiple sclerosis (MS), also known as "disseminated sclerosis" or "encephalomyelitis disseminata", is an inflammatory disease in which the fatty myelin sheaths around the axons of the brain and spinal cord are damaged, leading to demyelination and scarring as well as a broad spectrum of signs and symptoms.

A very educational film showing the life cycles of a mosquito, where it breeds and how to control it

This film shows the life cycles of the common (Culex) and the malaria (Anopheles) mosquito. Depicts methods of exterminating larvae and adult mosquitoes. Includes breeding places, the laying of the eggs, the various stages of development, and methods of mosquito control.

DISCLAIMER: This video is part of the Prelinger Archives with the Creative Commons Public Domain Mark 1.0 license. This video is in the Public Domain.