- Note: T1*, immediately after the first or second dose of NCV; T2*, 3 days after the first or second dose of the NCV; T3*, 5 days after the first or second dose of NCV; T4*, 7 days after the first or second dose of NCV; T5*, 14 days after the first or second dose of NCV; #, record as cases with visual analogue scale (VAS) scores from 0 to 10; Adverse events of the interventions*, including abnormal pain, skin allergy, and other adverse reactions