This spontaneous report was received from pharmacy technician referring to unspecified number of patients of unknown age and gender. Their concurrent conditions, medical history, concomitant medications, drug reactions and allergies were not reported. On an unknown date in December 2017, there was a VARIVAX temperature excursion in the 6 degrees Fahrenheit (F) to 14 degrees F for 30 minutes. From 30-DEC-2017 to 01-FEB-2018, the doses of these improperly stored VARIVAX was administered to unspecified patients. On an unknown date, the VARIVAX had temperature excursion of 16.9 degrees F for 30 minutes. On an unknown date, the improperly stored VARIVAX (lot#N019839, expiry 13-JUL-2019) was administered to 99 unspecified patients and the improperly stored VARIVAX (lot# N022979, expiry 23-AUG-2019) was administered to 200 unspecified patients. It was reported that event was because of data logger. Reporter also stated that no adverse symptoms reported. This is a non-valid case due to lack of patient identifiers. As of 12-JUL-2018, all telephone attempts to obtain follow-up information have been unsuccessful. Upon receipt of follow-up information it was determined that this case is now valid because patient identifier was received. Follow up information has been received from the pharmacy technician on 17-JUL-2018. This report refers to a 1 year old patient of unknown gender. On 14-FEB-2018 the patient was vaccinated with improperly stored VARIVAX (lot # N022979, expiry 23-AUG-2019) for prophylaxis. The vaccine temperature excursion occurred on 14-DEC-2017 and 30-DEC-2017.; Sender's Comments: US-009507513-1807USA009252: US-009507513-1807USA009253: US-009507513-1807USA009254: US-009507513-1807USA009255: US-009507513-1807USA009396: US-009507513-1807USA009256: US-009507513-1807USA009257: US-009507513-1807USA009258: US-009507513-1807USA009259: US-009507513-1807USA009260: US-009507513-1807USA009261: US-009507513-1807USA009262: US-009507513-1807USA009263: US-009507513-1807USA009264:US-009507513-1807USA009265:  US-009507513-1807USA009266: US-009507513-1807USA009267: US-009507513-1807USA009268: US-009507513-1807USA009269:US-009507513-1807USA009270: US-009507513-1807USA009271: US-009507513-1807USA009272: US-009507513-1807USA009273: US-009507513-1807USA009274: US-009507513-1807USA009275:  US-009507513-1807USA009276: US-009507513-1807USA009277: US-009507513-1807USA009278: US-009507513-1807USA009279: US-009507513-1807USA009280: US-009507513-1807USA009281: US-009507513-1807USA009282: US-009507513-1807USA009284: US-009507513-1807USA009283: US-009507513-1807USA009285: US-009507513-1807USA009287: US-009507513-1807USA009286: US-009507513-1807USA009288: US-009507513-1807USA009289: US-009507513-1807USA009290: US-009507513-1807USA009291: US-009507513-1807USA009292: US-009507513-1807USA009293: US-009507513-1807USA009294: US-009507513-1807USA009295: US-009507513-1807USA009296: US-009507513-1807USA009297: US-009507513-1807USA009298: US-009507513-1807USA009299: US-009507513-1807USA009300: US-009507513-1807USA009301: US-009507513-1807USA009302: US-009507513-1807USA009303: US-009507513-1807USA009304: US-009507513-1807USA009305: US-009507513-1807USA009306: US-009507513-1807USA009307: US-009507513-1807USA009308: US-009507513-1807USA009309: US-009507513-1807USA009310: US-009507513-1807USA009311: US-009507513-1807USA009312: US-009507513-1807USA009313: US-009507513-1807USA009314: US-009507513-1807USA009315: US-009507513-1807USA009316: US-009507513-1807USA009317: US-009507513-1807USA009318: US-009507513-1807USA009319.