Chapter III: Its Control and Suppression 40

Plague Prevention by Extermination of Rats--General Uselessness
of the Rat and Its Enormous Destructiveness, with Details of
Trapping and Other Extermination Methods--The Manila Epidemic,
1912-1914--The First Cases--Unusual Character of Plague Cases at
Quarantine--Clinical Description of Two Cases at
Quarantine--Inauguration of the Manila Epidemic--Directed to
Take Charge of Plague Suppression in Manila--Plague Fighting
Organization--Method of Rat Proofing and Rat
Destruction--Correspondence Between Dr. Jackson and Dr. Heiser,
Director of Public Health--Observations on Fleas and Their
Habits--Conditions of Habitations in Manila Favoring Rat
Multiplication and Spread of Plague--Comparative Statistics on
Methods of Catching Rats--The Natural Enemies of the
Flea--Zoölogic Classification of Rats--A Collection of Notes
Concerning Rat Runs, Rat Nests, Multiple House Infections and
Other Data--Sample of Detailed Orders Issued Regarding Rat
Extermination--Method of Procedure of Collecting and Forwarding
Rats Suspected of Plague Infection to Laboratory--Memoranda in
Plague Cases--Letter of Warning and Appeal for
Coöperation--Bacteriologic Observations made During the Manila
Plague Epidemic, by Dr. Otto Schöbl--Notes Concerning the
Bubonic Plague in Hong Kong, by Dr. David Roberg.