Complex sentence: Texas Biomed maintains the only privately-owned Biosafety level 4 (BSL-4) laboratory in the United States, developing bioterrorism defenses and novel strategies against incurable infectious diseases.
Split into simpler sentences: Texas Biomed maintains the only privately owned Biosafety level 4 (BSL-4) laboratory in the United States. It develops bioterrorism defenses and novel strategies against incurable infectious diseases.