 And Gov. Ifayu Okowa of Delta State has urged Nigerians to stop having doubts about the safety of the COVID-19 vaccine. Okowa fielded questions from the State House correspondents after a private meeting with Vice President Yemi Oshimbaju on Tuesday at the Presidential Villa, Abuja. Reports have it that the World Health Organization recently warned that COVID-19 Delta variant was fast spreading around the world. Also, the National Primary Health Care Development Agency, NPHCDA, has officially ended the country's first phase of COVID-19 vaccinations.