Proceedings of Seventh Annual Meeting 99 



of malaria in the county. For many years, the north shore of the 

 county was famous, or infamous, because of the prevalence of 

 malaria. In fact, conditions became so acute that certain communi- 

 ties suppressed the publication of malaria cases and doctors hesitated 

 to report them. 



In 1916 we sent to physicians in four north-shore communities 

 weekly requests to report to us any cases which had occurred. In 

 1917 we sent to all north-shore physicians, and in 1918 and 1919 

 to physicians throughout the county. Their response has been gen- 

 eral and gratifying and their cooperation is highly appreciated. 



The following table gives a comparative summary of malaria con- 

 ditions throughout the county, as gleaned from the reports of phy- 

 sicians to the commission. 



Comparative Malaria Summary, Nassau County, L. I. 



Annually to 





1916 



1916 



1917 



1918 



1919 



Number of communities reporting. . 



4 



4 



7 



19 



18 



Number of doctors receiving reports 







41 



III 



99 



Number of doctors reporting 







23 



35 



46 









133 



79 



289 



Number of cases reported — 













North Shore 



















51 



5 



2 









17 



I 



6 



Total 



475 



56 



68 



6 



8 



South Shore 













New 











I 













2 



Total 











3 



Throughout County 













New 







51 



5 



3 









17 



I 



8 



Total 



475 



56 



68 



6 



II 



It is convincing proof of the 



success 



of our 



work 



when in 



1919 



reports from all localities in the county reveal only 11 malaria 

 cases as compared with 475 annually from only four communities 

 previous to 1916. The number of new cases reported in the last two 

 years, 5 in 1918 and 3 in 1919, show that the work carried on by 

 the commission has effected an almost absolute control of malarial 

 conditions which, a few years ago, were truly alarming. 



President Hudson : The next paper is in reference to Penn- 

 sylvania, by W. V. Becker, of the Pennsylvania State Department 

 of Health. 



