|
|
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
![Redrape the back, face the head of the table, and apply passive touch as finishing technique. Gently ...](https://biology-forums.com/gallery/32/medium_380798_22_08_17_12_32_35_3284675.jpeg)
![Starting at the waist, apply circular two-handed petrissage over the entire right side. Keep hands ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_12_54_25_33052685.jpeg)
![Basic sliding effleurage to the lower leg. Apply from heel of foot to knee. Conform hands to contour ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_1_04_31_330671623.jpeg)