6 in 10 of adults over 50 have never heard of RSV, despite some being most at risk A leading cause of respiratory illness in adults, it is estimated to cause more than 5 million infections and 33,000 in-hospital deaths in over 60s every year. However, of the 3516 adults surveyed by GSK ahead of RSV Awareness Week, 60% were unaware of virus. Find out more below. Our purpose We are a focused biophar