Mr Mohammed spoke against the backdrop of the Omicron variant of COVID-19 which is spreading across the globe.
The evaluation was to ascertain the mental state of the personnel.
The meeting will discuss a new treaty on the Covid-19 pandemic.
The PSC boss had said civil servants who refused vaccination would have to present negative PCR tests every 72 hours.
Most of the 5,123 new infections were reported in Seoul and the capital region.
The WHO said blanket travel bans would not prevent the spread, and they “place a heavy burden on lives and livelihoods.”
”We consider this directive and threats as unbecoming, draconian and against the Constitution of the Federal Republic of Nigeria…”
NCDC director-general Ifedayo Adetifa announced the two Omicron cases were discovered through genomic sequencing…linked…to two passengers from South Africa.
The European Medicines Agency says if the new variant becomes widespread, existing vaccines will provide protection.
NCDC says it is analysing outbound and inbound travellers from countries with confirmed cases of the Omicron variant of COVID-19.