Seasonal influenza

Flu (or influenza) is a highly contagious viral illness. Although symptoms may be mild, it  can also cause severe illness or even death, particularly in people at increased risk: very young children, pregnant women, people aged 65 and over, and those with certain  chronic conditions, severe obesity or a weakened immune system.

The illness usually  lasts around a week, but some symptoms, particularly fatigue and a cough, may persist  for longer. 

The virus spreads through the air, particularly when an infected person coughs or  sneezes, as well as through contaminated hands or objects.  Washing your hands regularly, coughing into your elbow, ventilating indoor spaces and  limiting close contact with others when you are ill help reduce transmission of the virus. 

Vaccination

Vaccination remains the best way to protect yourself against flu and reduce its severity, particularly for people at increased risk.

Flu vaccines are now only available on prescription. The process at the CERN Infirmary has therefore been adapted so that a prescription can be obtained before purchasing the vaccine.

Active members of the CERN community (MPE, MPA, temporary agency staff and contractors) can visit the Infirmary on working days during opening hours. They will be given a prescription in their name once their eligibility for vaccination has been checked.

With this prescription, they can purchase their vaccine from a pharmacy of their choice, then bring it to the CERN Infirmary to be vaccinated.

The prescription can also be used to claim reimbursement for the vaccine, subject to the terms of their health insurance cover.

Vaccination in France | Ameli (available in French only)
Vaccination in Switzerland | OFSP

Contraindications for the flu vaccine

Vaccination must be postponed in the event of an acute illness accompanied by fever. The medical team will assess when it can be given.

Any history of an allergic reaction to a flu vaccine or any of its components, including egg proteins, must be reported before a prescription is issued and before vaccination. A medical assessment will determine whether vaccination can proceed and under what conditions.

Pregnancy is not a contraindication: flu vaccination is recommended at any stage of pregnancy.

Possible side effects from vaccination

The risk of serious complications from flu is considerably higher than the risk of serious side effects from vaccination.

The most common side effects are redness or mild pain at the injection site. A mild fever, muscle aches, headaches or nausea may also occur. These reactions are generally mild and resolve within a few days.

Severe allergic reactions are very rare.

General information about influenza

General information on Influenza | WHO
General information on Influenza in Switzerland | OFSP
Information about flu vaccination in Switzerland (page in French, with access to English translation)