2、ll-knowndoctorinLondon–sofamous,indeed,thatheattendedQueenVictoriaasherpersonalphysician..2.Buthebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera.3. Firsthemarkedonamaptheexactplaceswhereallthedeadpeoplelived.4. Heknewitwouldneverbecontrolleduntilitscausewasfound.5. He