Immunity :: How do the rules of immunity change during chronic infections?

After a viral infection, a small percentage of the T cells generated to kill virus-infected cells remain on guard to establish long-term immunity. These so-called memory T cells, which derive from a family of immune cells known as CD8 T cells, engage in a self-renewal process that is essential to their persistence.

Stem Cell :: Female stem cells work better

Female stem cells derived from muscle have a greater ability to regenerate skeletal muscle tissue than male cells, according to a study at Children?s Hospital of Pittsburgh of UPMC.

Heart :: ICD Devices Offer Heart Patients Life-Saving Benefits

Researchers at the University of Pennsylvania?s School of Medicine have discovered that implantable cardioverter-defibrillators (ICDs) — electric monitoring devices that deliver a lifesaving shock in the event of a cardiac arrest — help patients with heart problems live longer more active lives.

Bird Flu :: Tracking the spread of bird flu between farms

A new way of understanding how highly pathogenic avian influenza (HPAI) spreads among farm birds is published today in PLoS ONE. The study could help analyse the success of different control measures in the event of future outbreaks.

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