Molecular epidemiology (4)
l Is transmission from the foreign-born to
non-foreign-born occurring?
San Francisco:  In 8 of 9 clusters that included
both US & Mexican-born, index case was US-
born (Jasmer RM et al., 1997)
Netherlands:  RFLP shows transmission within
FB communities and from FB to Dutch
(Borgdorff et al., 1998)