title: Tests on ticks from wild birds collected in the eastern United States for rickettsiae and viruses.
mesh_terms: D000818:Animals; D001717:Birds; D006168:Guinea Pigs; D012284:Rickettsia rickettsii / Q000302:isolation & purification*; D013987:Ticks; D014481:United States; D014780:Viruses / Q000302:isolation & purification*; D015047:Zoonoses