Instruct: Classify the given review as either positive or negative.
Query: Is human research causing emerging diseases?

Is it possible that unwise human research is responsible in some way for the explosion of emerging diseases?Robert Lee's book is an excellent review of research over the past century that has possible bearing on newly emerging diseases such as AIDS and "Mad-Cow" disease. Not only was there significant potential for lab accident, but there was also potential for covert abuses of research, for purposes of biological warfare.Many phenomena that laymen think of as "new" in the AIDS epidemic have actually been the subject of intense study, for a very long time. Robert Lee's book documents the paper trail of detailed research with retroviruses, cancer-causing viruses, immune suppression, opportunistic diseases, and cross-species transfer.It is a must-read for anyone interested in AIDS origin or emerging diseases.