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Science: Gene-spliced tumour cells immunise mice against cancer

TB returns to haunt America

Science: Monkey puzzle and AIDS vaccines - no easy answers - Phyllida Brown reports from the International Conference on Advances in AIDS Vaccine Development, held in Florida last month

Ultimate test for HIV vaccines

AZT and AIDS: the doubts persist - US authorities have just licensed a second drug called ddI for the fight against AIDS. But medical scientists are still concerned over the value of the original drug

Technology

Technology: Radioactive antibody highlights bowel cancers

Ion channels bring Nobel prize to Germany

Conflict rages over alternative AIDS theories

Blanket HIV tests urged for US hospitals

Kurdish home builders race against time

Monkey tests force rethink on AIDS vaccine

Science: Does HIV trigger an autoimmune response?