Mild reactions at the injection site, such as pain, redness, swelling, or induration, are possible. More marked local reactions, such as fever, headache, myalgia, lymph node swelling, fatigue, arthritis, and gastrointestinal disorders, may occasionally occur.

Rare are circulatory reactions, sweating, chills, paraesthesia and allergic reactions; these require treatment only in exceptional cases. There have been isolated reports of inflammatory and demyelinating neurological disorders, such as progressive ascending paralysis (Guillain-Barré syndrome) or optic neuritis in individual cases.

Based on currently available data, it cannot be completely excluded that, in rare cases, immunisation may induce an acute episode in patients with an autoimmune disorder (such as multiple sclerosis) or with an appropriate genetic predisposition. However, there is no evidence of an increased frequency of autoimmune disorders after immunisation.

If you develop side effects, especially those not mentioned, please inform your doctor or pharmacist.