The document discusses a passage about Dr. Rogelio N. Relova, a renowned virologist and rabies expert in the Philippines. It describes how he succeeded in curing rabies through developing a potent hyper immune blood plasma treatment. It provides an example of how he saved the life of an "hydrophobia baby" by performing the first operation of its kind to deliver the baby from the womb of its dying mother who had rabies, and the baby was found to be healthy. The passage is to be translated into Spanish while maintaining coherence and understandability.