Through our immunization and PHC system transformation support to the National Primary Health Care Development Agency (NPHCDA) and the Nigerian Centre for Disease Control (NCDC), we have been at the fore of providing support to the country’s COVID-19 pandemic prevention and response. We provided technical assistance to the design and deployment of the COVID SCALES strategy across the 37 states of the country. SCALES is an acronym for “service delivery, communication, accountability, logistics, electronic reporting and supportive supervision”. The strategy was introduced to rapidly ramp up COVID-19 vaccine coverage and reinvigorate routine immunisation uptake by expanding access to COVID-19 vaccines outside the health facility. It also provides an opportunity to leverage on the COVID response structure to improve routine immunisation and other basic primary health care.