11. During 1865 and 1866 he treated victims of an outbreak of typhus fever by open-air methods. 12. For example, in 1920 professor Rudolf Weigl of the Lw�w University developed a vaccine against typhus fever . 13. He died at the age of 56, in the convent of Busseto, when he contracted typhus fever . 14. The oriental and northern rat fleas transmit murine typhus fever among rodents and from rodents to people. 15. Stricken with typhus fever the ship had already lost 16 people on its journey from Plymouth to Brisbane. 16. Stricken with typhus fever , the ship had already lost 16 people on its journey from Plymouth to Brisbane. 17. Upon arrival, Loftis accepted the responsibility of the mission's dispensary until his death from typhus fever and smallpox. 18. An outbreak of typhus fever in the city in 1816 saw the school being used as a temporary hospital. 19. They went to London in 1817 with the second brother, William, a medical student, but soon afterwards they all caught typhus fever . 20. These Germans endured hardship as a result of overcrowded ships; Typhus fever spread rapidly throughout the ships due to the cramped conditions.