New virus variant apparently emerging in Nigeria

NAIROBI, Kenya — Another new variant of the coronavirus appears to have emerged in Nigeria, Africa’s top public health official said Thursday, but he added that further investigation was needed.

The discovery could add to new alarm after similar variants were announced in Britain and South Africa, leading to the swift return of international travel restrictions and other measures during a major holiday season.

“It’s a separate lineage from the U.K. and South Africa,” the head of the Africa Centers for Disease Control and Prevention, John Nkengasong, told reporters. He said the Nigeria CDC and the African Center of Excellence for Genomics of Infectious Diseases would analyze more samples.

“Give us some time … it’s still very early,” he said.

The identification of the apparent new variant was based on two or three genetic sequences, Nkengasong said, but that and South Africa’s alert last week were enough to prompt an emergency meeting of the Africa CDC this week.

The variant in Nigeria, Africa’s most populous country, was found in two patient samples collected on Aug. 3 and on Oct. 9 in Osun state, according to a working research paper.

Unlike the variant seen in the U.K., “we haven’t observed such rapid rise of the lineage in Nigeria and do not have evidence to indicate that the P681H variant is contributing to increased transmission of the virus in Nigeria. However, the relative difference in scale of genomic surveillance in Nigeria vs. the U.K. may imply a reduced power to detect such changes,” the paper says.

The new virus variant in South Africa is now the predominant one there, Nkengasong said, as confirmed infections in the country approach 1 million.