Not to be inj intravascularly, SC or intradermally. Postpone vaccination in individuals suffering from acute severe febrile illness or acute infection. Presence of minor infection &/or low-grade fever should not delay vaccination. Anaphylaxis. Monitor patients w/ symptoms indicative of myocarditis or pericarditis eg, acute & persisting chest pain, shortness of breath, or palpitations following vaccination. Anxiety-related reactions, including vasovagal reactions (syncope), hyperventilation or stress-related reactions (eg, dizziness, palpitations, increases in heart rate, alterations in BP, paraesthesia, hypoaesthesia & sweating). Immunocompromised individuals. Patients w/ thrombocytopenia or any coagulation disorder (eg, haemophilia). Closely observe patients for at least 30 min following vaccination. Concomitant use w/ anticoagulant or immunosuppressant therapy. May temporarily affect ability to drive or use machines. Infants <6 mth.