A young boy stands indoors holding a marker, raising cancer awareness.

A Scan Can Spare Most Kids a Painful Bone Marrow Biopsy

Doctors have long relied on an invasive marrow-sampling procedure to check whether a childhood cancer called rhabdomyosarcoma has advanced. A large international study finds a whole-body imaging scan already in use catches it just as reliably, except in one circumstance.

BEACON combines immune-stimulating DNA (red) and chemokines (blue) to help guide protective immune cells to the female reproductive tract. Credit: Sachin Bhagchandani

A Two-Part Herpes Vaccine Offers Protection In Mice

An injection primes the immune system, then nanoparticles applied vaginally pull immune defenders to where herpes enters. In mice, 80 percent showed no disease for six months, versus 40 percent with the shot alone. Human trials remain distant.