Protection from this vaccine is approximately 70% and starts 10 days after the third dose. These capsules require refrigeration before use. Oral (live) vaccine consisting of three capsules to be taken on alternate days on empty stomach.ice cubes in water or ice cream) and avoid eating raw fruits and vegetables that you yourself have not peeled and washed with clean drinking water. Nevertheless, the value of food and water hygiene cannot be stressed enough: avoid buying water bottles without proper sealing, avoid drinking tap water from unknown sources, avoid eating cooled / frozen foods (i.e. However, only few travelers fully adhere to this advice. “Cook it, boil it, peel it or forget it” – this simple slogan would be sufficient to prevent typhoid fever nearly entirely. Talk to your travel health advisor if you belong to this group. On extremely rare occasions, people may develop severe, sometimes life-threatening reactions to the yellow fever vaccine – which is why this vaccine is used with caution in immunocompromised individuals, pregnant women and the elderly for safety reasons. Side effects can be treated with paracetamol but aspirin and other nonsteroidal anti-inflammatory drugs, for example ibuprofen or naproxen, should be avoided. Reactions to yellow fever vaccine are generally mild and include headache, muscle aches, and low-grade fevers. In immunocompetent persons, protection starts about 10 days after the first vaccination. The vaccine is a live-attenuated form of the virus. In addition, providing proof of vaccination may be mandatory for entry into certain countries. It is recommended for people aged 9 months or older who are travelling to yellow fever endemic areas. The available vaccine is highly efficacious and provides a long-term protection. As against all mosquito-borne diseases, prevention from mosquito bites is during day and night (see “Insect and tick bite protection” factsheet).
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