The phrase "a number of affected" is correct and usable in written English.
It can be used when referring to several individuals or entities that have been impacted by a particular situation or event.
Example: "A number of affected individuals have come forward to share their experiences regarding the recent policy changes."
Alternatives: "several impacted" or "many who were affected".
A number of affected users have reportedly switched iPhones that had already been upgraded to iOS 7 for models running iOS 6.
Mari Knowles, managing partner at Croydon-based specialist law firm Leasehold Law, is representing a number of affected leaseholders across the country.
A number of affected patients were diagnosed with intoxification by an organophosphorous compound, and clearly showed symptoms associated with sarin, including loss of consciousness, shortness of breath, blurred vision, eye inflammation, vomiting and seizures.
grahama writes: Living in the South East we have luckily escaped this deluge but I've heard a number of affected people on the news saying the after the last floods four years ago the government or local councils, not sure which, had made a commitment to upgrade local flood defenses and had that happened, which it hasn't, much of the damage suffered this time would not have occurred.
I have also been contacted by a number of affected users since writing about this last week.
This correlation could be due to a number of affected activities of daily living that require ulnar deviation, including (1) typing, specifically when pressing the "Enter" key on the keyboard, (2) reaching for an item in one's pocket, and (3) opening a bottle.
They felt that they should give more money when there was a high number of affected victims -- a rational response.
In most cases, the headlines will toss out a dramatic number of affected individuals and amounts of stolen information described by sweepingly generic impressions of the data lost.
CONCLUSIONS: Our work demonstrates the feasibility of collecting a large number of affected sib-pair families with NIDDM to provide data that will enable a whole genome search approach, including linkage analysis.
Extrapolating from its methodologic strengths and weaknesses, we expect that MSP will identify relatively strong effect loci that are likely relevant to a smaller number of affected individuals.
This explanation accounts for a considerable number of affected genes.
