CHRISTOPHE VAN DER PERRE SENEGAL does not have the capacity to store COVID-19 vaccines at ultra-low temperatures and would prefer to receive vials that can be kept for longer under ordinary refrigeration, the head of the country's vaccination programme said on Monday. A lack of cold storage means Senegal would only be able to keep vaccines developed by AstraZeneca and Oxford University, by China or Russia in the long term, as they do not require a deep freeze, Ousseynou Badiane told Reuters. Those being distributed by Moderna, which require storage at minus 20 degrees Celsius (-4 F), and Pfizer and…