Respiratory infections of viral origin are one of the most prevalent causes of mortality from infectious diseases in the world. There are several viral agents that cause this set of diseases, their clinical manifestations and the population groups most vulnerable to each one of them being also diverse. However, although we already have effective vaccines against several of these viruses, such as those that cause flu and covid-19, there are others for which this precious protection tool is not yet available. Among these, the respiratory syncytial virus (RSV) is of particular relevance, due to its enormous impact on newborns, infants and children.
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