Epidemic Influenza among American Soldiers Abroad

1918 Boston Medical and Surgical Journal  
practically all domestic animals. Furthermore, the human flea, Pulex irritans, has been found upon rats, and can, on occasion, transfer bubonic plague from animal to animal.
doi:10.1056/nejm191812261792607 fatcat:5z7dn2pibjdnhikzcewt6uqh5q