Mr. Chukwu said the new cases are spouses of
the primary contacts of the index case, Patrick
Sawyer, the Liberian-American who brought the
virus to Nigeria.
He said the new cases are the first secondary
contacts to test positive to the deadly virus that
has killed five people in Nigeria.
The secondary contacts had been under
surveillance since the outbreak of the disease in
Nigeria, Mr. Chukwu added.