There
is no known cure or licensed treatment for Ebola, which has killed more
than 1,000 people in the current outbreak in West Africa. The World
Health Organization has called the Ebola outbreak — which emerged in
Guinea in March and has since spread to Liberia, Sierra Leone and
possibly Nigeria — an international health emergency and urged nations
worldwide to donate resources to battle the disease.
The
ethical questions surrounding experimental Ebola drugs and vaccines
were being debated Monday during a teleconference of medical ethicists
and other experts organized by the U.N. health agency.
Two
Americans diagnosed with Ebola in Liberia and evacuated back to the
United States have been treated with the drug. One of them, Dr. Kent
Brantly, said last week that his condition was improving and the husband
of the aid worker being treated with Brantly said the same thing. Both
are in isolation at an Atlanta hospital.
Spain
said it obtained permission from the laboratory developing the drug
and, under an agreement between WHO and the Doctors Without Borders
charity group, imported the drug from Geneva where it said a dose had
been available. The ministry said Spain sought the drug under
legislation permitting use of unauthorized medication in patients
suffering from a life-threatening illness who cannot be treated
satisfactorily with any authorized drug.
Despite Spain's statement,
WHO spokesman Gregory Hartl told The Associated Press on Monday that the
U.N. agency had no role in helping Spain obtain the experimental drug.
At
least one country in West Africa has expressed interest in the
experimental drug. Nigeria's health minister, Onyenbuchi Chukwu, said
last week he had asked U.S. health officials about access but was told
the manufacturer would have to agree.
Dr.
Tom Frieden, director of the U.S. Centers for Disease Control and
Prevention, said "there are virtually no doses available," a CDC
spokesman said last week, before the announcement that Spain was also
using the drug.
Because the
ZMapp drug has never been tested in humans, scientists say there's no
way to tell if it has made any difference to the two American aid
workers who have so far received it.
The drug is a mixture of
three antibodies engineered to recognize Ebola and bind to infected
cells so the immune system can kill them. Scientists culled antibodies
from laboratory mice and ZMapp's maker now grows the antibodies in
tobacco plants and then purifies them. It takes several months to even
produce a modest amount of the drug.
Nigerian
health authorities, meanwhile, confirmed another Ebola case Monday, a
nurse who was treating Patrick Sawyer, the Liberian-American who flew
into the country with the disease and died of it last month. That brings
the locally confirmed Ebola cases in Nigeria to 10, including two who
have died, Sawyer and another nurse. Nigerian authorities have 177
contacts of Sawyer now under surveillance.
WHO has not yet confirmed the Ebola cases in Nigeria.
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