The disease can involve only one joint or it may affect two or three joints. More than three affected joints is very rare.
Arthritis usually affects the human joints, when the joints of the legs are affected, one may end up in a wheelchair.
how many people were affected
thousands of people are affected
how many people are affected by MS (multiple sclerosis)
1 out of 4 people are affected
3000000 people are affected
Most people in the world are affected by dust. (Affected = it influences them in some way)
All people on earth are affected by their environment.
85 people were affected by H1N1
Rohypnol is illegal in the United States, so it is hard to tell how many people are affected by it.
About 2.2 million people are affected by the disease worldwide.
2 to 3 million people are affected by such event.