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
Over 10000 people where affected by the tsunami.
3000000 people are affected
1 out of 4 people are affected
how many people are affected by MS (multiple sclerosis)
because the ice lodges in the crack and eventually it starts to break
Most people in the world are affected by dust. (Affected = it influences them in some way)
85 people were affected by H1N1
All people on earth are affected by their environment.
Rohypnol is illegal in the United States, so it is hard to tell how many people are affected by it.