On Sunday, the Zamfara State government said it is investigating 25 people who were in contact with the two index cases discovered on Friday.
One of the index cases is a male attendant at a gas station in Gusau, the state capital, in a statement by the Ministry of Health.
The second case is a female trader who regularly travels to Lagos was said to have isolated herself after returning from her last voyage until she felt sick and later reported positive for COVID-19.
In the meantime, Governor Bello Matawale has directed all borders around the state to be immediately closed, with no vehicle permitted to enter or exit the State.
The governor also visited the Infectious Disease Isolation Center fitted with ventilators, PCR machines and thousands of fast test strips for COVID-19 patients to be screened and treated.
Governor Matawalle also advised the citizens of the state to comply with the safety measures and guidelines stipulated by the Nigeria Center for Disease Control (NCDC) with a view to further virus spread.
He also reiterated the determination of his administration to eradicate the virus, stressing that the government will do everything in its power to ensure the epidemic is contained.