[Q]: South Africa has the world 's highest caseload with 4.7 million people infected with HIV or AIDS .

With 4.7 million people infected with HIV or AIDS , South Africa has the world 's highest AIDS caseload .
****
[A]: yes

[Q]: The reading for both August and July is the best seen since the survey began in August 1997 .

It is the highest reading since the index was created in August 1997 .
****
[A]: yes

[Q]: They varied greatly , ranging from one per cent or two per cent to 36 per cent for a speciality US brand called American Spirit .

The results ranged from 1 per cent or 2 per cent to 36 per cent for a speciality brand called American Spirit .
****
[A]: yes

[Q]: They include Ask Jeeves Inc . , Global Crossing , Aether Systems , Clarent , Copper Mountain Networks and VA Linux , now VA Software .

They included Global Crossing , Akamai Technologies , Ask Jeeves , Copper Mountain Networks , Etoys and VA Linux .
****
[A]:
yes