The World Health Organisation (WHO) has announced new names for variants of the monkeypox virus that are currently in circulation.
Experts will now refer to the former Congo Basin clade (group of variants) in Central Africa as Clade I, and the former West African clade as Clade II. The latter consists of two sub-clades, Clade IIa and Clade IIb, of which Clade IIb was the main group of variants circulating during the 2022 outbreak.
Newly-identified viruses, related diseases, and virus variants should be given names that avoid causing offence to any cultural, social, national, regional, professional, or ethnic groups, and which minimise any negative impact on trade, travel, tourism or animal welfare, WHO said.
The monkeypox virus was named when it was first discovered in 1958. Major variants were identified by the geographic regions where they were known to circulate.
WHO officially declared late July that the current multi-country monkeypox outbreak had turned into a public health emergency of international concern.