Capitalized diseases name..

                                         Diseases Named After People or Regions Are Capitalized

Ebola is the name of a river in Zaire, and it was near the Ebola River that the virus first caused disease in humans. Thus, the disease became known as the Ebola virus. West Nile in West Nile virus is capitalized for a similar reason: It was first found in a patient in the West Nile district of northern Uganda. Some disease names are capitalized because they are named after the person who discovered them.

For example:

Alzheimer’s disease is named after a German doctor named Alois Alzheimer. Other disease names are capitalized because they’re named after a person who had the disease, such as Lou Gehrig’s disease, which is also known as amyotrophic lateral sclerosis or ALS.

Alzheimer’s Disease vs. Alzheimer Disease ?

When people start thinking about disease names, they often wonder why some have apostrophes and some don’t, and why you sometimes see the same name written both with and without an apostrophe.

You sometimes see disease names such as Alzheimer (without the apostrophe) because there is a movement to omit the apostrophe from names based on the name of the doctor who discovered the disease. Some patient advocacy groups say that the apostrophe implies the disease belongs to the physician and that such names are inappropriate. On the other hand, the argument that an apostrophe means the doctors own the disease is linguistically simplistic , and the sentiment isn't universal among advocacy groups.

For example, the British Alzheimer’s Society makes its opinion clear. Their website reads:

“ Alzheimer’s is often misspelt without an apostrophe which is incorrect ….”