A live virus vaccine contains a live, weakened (attenuated) virus that helps your body develop an immune response without you developing symptoms of the disease it is intended to prevent. Examples ...

Thus, experts have worried that the pediatric varicella vaccine, by reducing childhood varicella rates, actually could increase zoster rates in the adult population. Researchers calculated ...

President-elect Donald Trump has announced he wants to appoint vaccine sceptic Robert F Kennedy Jr as the head of the US Department of Health and Human Services. The position has a broad remit ...

In addition, the availability of the combination vaccines will reduce the number of injections given to children in countries that already started with routine infant varicella vaccination.

Vaccine-preventable diseases have followed suit: Cases of pertussis, known as whooping cough, jumped from four last year to 64 so far this year. Chickenpox cases have tripled to at least 15.

Inactivated vaccines, also called killed vaccines, are made from a protein or other small pieces taken from a virus or bacteria. They use this component to stimulate the immune system to protect the ...