children who were vaccinated with VARIVAX and had localized reactions.Reports the children had cellulitis at the shot location. All of the reactions were red swollen, hot to touch area.The adverse reaction occurred in the left thigh; children who were vaccinated with VARIVAX and had localized reactions.Reports the children had cellulitis at the shot location. All of the reactions were red swollen, hot to touch area.The adverse reaction occurred in the left thigh; children who were vaccinated with VARIVAX and had localized reactions.Reports the children had cellulitis at the shot location. All of the reactions were red swollen, hot to touch area.The adverse reaction occurred in the left thigh; This spontaneous report has been received from an office manager concerning a child of unknown age and gender. The patient's concomitant therapies included sterile diluent (MERCK STERILE DILUENT). The patient's concurrent conditions, historical drugs and medical history were not reported.        On an unknown date, the patient was vaccinated with varicella virus vaccine live (oka/merck)(VARIVAX) 0.5 ml, subcutaneously, in the left thigh, Lot # T022314, expiration date 30-JUN-2022 for prophylaxis.     On an unknown date, the child experienced severe localized reactions. The patient had cellulitis at the shot location (Vaccination site cellulitis). All of the reactions were red swollen (Vaccination site swelling) and hot to touch area (Vaccination site warmth). The adverse reaction occurred in the left thigh; 4-6 centimeter wide.   It was reported that the patient sought medical attention and it was unknown whether the patient underwent any laboratory or diagnostic tests.  The reporter informed that he/she has been doing this for 30 years and has never seen anything like it and he/she considered the reaction was coming from an specific lot number of varicella virus vaccine live (oka/merck)(VARIVAX) Lot # T022314, expiration date 30-JUN-2022. Additionally, that the adverse event was not related to the diluent because the same diluent was used for the Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine, Live (M-M-R II) as was used for the varicella virus vaccine live (oka/merck)(VARIVAX)  and they had not had any adverse reactions involving the Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine, Live (M-M-R II). The reporter informed they had 3 or 4 unused vials of the varicella virus vaccine live (oka/merck)(VARIVAX) Lot # T022314, expiration date 30-JUN-2022  left to return. It was reported that the varicella virus vaccine live (oka/merck)(VARIVAX) was stored at the recommended range, also reported as Frozen. It did not experience a temperature excursion and the storage temperature was monitored via a data logger. The reporter confirmed there were not any particles or matter in the varicella virus vaccine live (oka/merck)(VARIVAX) vial.  At the time of reporting, the patient was recovering from vaccination site cellulitis, vaccination site warmth and vaccination site swelling. The causal relationship between varicella virus vaccine live (oka/merck)(VARIVAX) and the vaccination site cellulitis, vaccination site warmth and vaccination site swelling was not reported.  This is one of nine reports received from the same reporter.; Sender's Comments:  US-009507513-2103USA006522: