53 2 
THOMPSON YATES LABORATORIES REPORT 
Case 
1— V.F. 
2— J.B. 
3— A.F. 
+-E. 
5— M. 
6— T. 
7— D. 
8— K. 
9 — W. 
10— P. 
1 1 — CP. 
12— S.M. 
When taken ill 
(Arri 
12. i. 01 
(Discharge of 
15. i. 01 
18. i. 01 
1 8. i. 01 
19. i. oi 
(Dischar 
26. i. 01 
28. i. 01 
3. ii. 01 
(Went 
6. ii 01 
(Returned 
18. 
23- 
24. 
When admitted to 
Hospital 
val at Para, 22. xii. 
16. i. 01 
cargo into lighters 
17. i. 01 
21. i. 01 
18. i. 01 
21. i. 01 
ge of cargo finished 
31. i. 01 
31. i. 01 
6. ii. 01 
alongside wharf 4. 
9. ii. 01 
to mooring about 
21. 
25- 
25. 
Result 
00) 
+ 16. i. OI 
began 15. i. 01) 
Recovered 
Recovered 
+ 22. i. 01 
-j- 23. i. 01 
22. i. 01) 
+ 1. ii 01 
Recovered 
+ 8 ii. 01 
ii. 01) 
+ 1 2. ii. 01 
11. ii. 01) 
Recovered 
Recovered 
Recovered 
Diaj 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Yellow Fever 
Tertian malaria and ? 
Yellow Fever 
The captain had an attack of yellow fever four years previously at Rio de Janeiro. 
The other hand (not included above) had also had yellow fever some years before. 
Most of the above cases occurred during my own illness ; they were diagnosed as 
yellow fever at the hospital, and such notes as were made and the temperature charts 
agree with this. The last three cases noted (namely, 10, 11, and 12) were examined; 
both Nos. 10 and 12 were indubitable yellow fever, rather severe in type. No. 1 1, 
however, certainly had tertian ague, for the parasite was demonstrated in his blood ; 
he neither had jaundice nor albuminuria. His personal history was that he had had 
yellow fever at Santa Cruz six years ago, and again four years ago ; he denied having 
had ague, or that he had been at all ill during the last four years when his voyages 
were between Hamburg and North America. It is possible that the virulent infections 
which were occurring of yellow fever organisms may have roused up a latent old 
malaria infection, although his immunity was sufficient to prevent any marked sign of 
yellow fever. None of the rest of the crew showed indications of an ague infection. 
