Portside

A radical new gene therapy for HIV using genetically modified cells mimics a rare but natural mutation that makes about 1% of the population resistant to the most common strains of HIV. Scientists were cautious not to draw strong conclusions from the small scale trial, which was designed to assess the safety of the therapy, but the early signs have raised their hopes.

If the FDA’s intention to remove growth promoters is going to be meaningful. Simply reducing antibiotic use (if that does indeed happen) isn’t adequate; by itself, it may even be a threat to welfare. Changing the livestock practices that made antibiotic use necessary will improve animal and human health both.

There’s a direct relationship among health, well-being and one’s place in the greater scheme. Based on studies by the British epidemiologist Michael Marmot, “the higher you are in the social hierarchy the better your health.”

A new study in mice suggests that Leprosy employs a bit of biological trickery to do its damage: It reprograms certain nerve cells to become like stem cells and uses them to infiltrate the body's muscle and nervous systems.