TABLE 1.

Protection conferred by passive immunization of mice with neutralizing antibodies^a

Antibody	No. of survivors/total
133/3.16	6/6
226/8.1	6/6
42/3.7b	0/5
None	0/7

^aEach mouse was intraperitoneally inoculated with 250 μg of the indicated antibody 1 day before and 2 days after an intraperitoneal challenge with 30 50% lethal doses of Ebola virus.

^bThis antibody reacts with the GPs of all Ebola virus species but does not neutralize virus infectivity in vitro.