BUENOS AIRES, Argentina (Reuters) – Researchers in Argentina say they have genetically modified an adenovirus – which can cause colds, conjunctivitis and bronchitis – to home in on cancer, killing tumor cells in patients without harming healthy tissue. Scientists have long been intrigued by the idea of using viruses to alert the immune system to seek and destroy cancerous cells. That interest has taken off in recent years as advances in genetic engineering allow them […]