Complex sentence: Tropical (pulmonary) eosinophilia or TPE is characterized by cough, asthmatic attacks, and enlarged spleen, and believed to be caused by filarial infection; it occurs most frequently in India and southeast Asia.
Split into simpler sentences: Tropical (pulmonary) eosinophilia or TPE is characterized by cough, asthmatic attacks, and enlarged spleen, and believed to be caused by filarial infection. It occurs most frequently in India and southeast Asia.