5. 
Serological Surveys of Individual Laboratories 
Yale Arbovirus Research Unit 
Professor Robert E. Shope provided the following serological survey of 
individuals who worked with various arboviruses, including SFV, at the 
Rockefeller Foundation Virus Laboratories or the Yale Arbovirus Research Unit. 
Fifty-two sera initially were screened for SFV by hemagglutination inhibition. 
The eight positive individuals then were tested for reactivity with antigens of 
Mayaro, chikungunya, and getah viruses, all members of the genus Alphavirus 
and closely related to SFV. Presumptive diagnoses are indicated (Table 12). 
Table 12 
Semliki Forest, Mayaro, Chikungunya, and Getah Hemagglutination-inhibition 
Test Results - December 21, 1992 - Yale Arbovirus Research Unit 
Worker 
Worked 
with 
SFV 
Period of 
Exposure 
(Years) 
Sample 
Date 
Semliki 
Forest 
Mayaro 
Chikung. 
Getah 
Inter- 
pretation 
CMA 
+ 
13 
12/5/78 
0 
SMB 
+ 
20 
12/5/78 
0 
JC 
4- 
29 
12/5/78 
0 
RC 
+ 
14 
1/13/64 
40 
0 
320 
20 
Ch 
DC 
+ 
19 
5/10/68 
0 
KM 
-1- 
14 
7/20/79 
0 
CM 
+ 
14 
10/19/72 
0 
FR 
+ 
5 
8/20/70 
0 
PR 
+ 
6 
11/8/65 
0 
GR 
+ 
10 
4/23/75 
0 
RS 
+ 
18 
7/14/75 
10 
0 
0 
0 
SFV/NS 
RES 
+ • 
34 
12/3/92 
40 
80 
80 
40 
Ma* 
MT 
+ 
4 
7/13/53 
0 
JW 
+ 
20 
12/5/78 
0 
[470] 
Recombinant DNA Research, Volume 18 
