The two SALS surveys provide a valuable record of experience with wild type 
SFV in more than fifty laboratories, comprising 470 laboratory workers, who 
handled SFV an average of 17 times, often at containment levels equivalent to the 
current Biosafety Level 1. In this large and diverse base of experience, involving 
various strains of SFV, with the exception of the remarkable and unique Tubingen 
incident, no overt infections were recorded. 
Recombinant DNA Research, Volume 18 
[467] 
