2 minutes read By Jose de Jesus Cortes Cuicatlan, Mexico, Feb 17 (efe-epa).- Mostly hopeful but also dealing with a certain degree of anxiety, senior citizens in this small town in the southern Mexican state of Oaxaca are being administered their first doses of a long-awaited Covid-19 vaccine. Accompanied by his daughter and clutching a wooden cane, Eustaquio Aguilar Sanchez made his way to the hospital in Cuicatlan to obtain the vaccine developed by British-Swedish biopharmaceutical company AstraZeneca and the University of Oxford. Following the injection, he lay down for 30 minutes in a makeshift observation space at an esplanade opposite the hospital while being monitored for a potential adverse reaction.