COVID-19
A respiratory illness caused by the SARS-CoV-2 virus. CDC advises all eligible travellers to be up to date with their COVID-19 vaccinations.
What it is
COVID-19 is a respiratory illness caused by the SARS-CoV-2 virus. Most cases are mild to moderate, but it can cause serious illness, especially in older adults and those with chronic conditions.
How it spreads
Through respiratory droplets and small airborne particles when an infected person breathes, talks, coughs, or sneezes. Crowded indoor settings increase risk.
Dosing & timing
- Primary series
- Follow the current CDC schedule for your age and risk group. Several vaccines are available, including mRNA and protein-subunit options.
- Boosters
- Updated annually to match circulating strains. Stay up to date.
- Before you travel
- If you had COVID-19 recently, you may delay vaccination for up to 3 months from the start of infection. Otherwise, get vaccinated as soon as you are due.
Who should consider it
CDC recommends all eligible travellers stay up to date with their COVID-19 vaccinations. Travel — especially long flights and crowded events — increases your chances of exposure.
Side effects and safety
Common (most resolve in a day or two)
- Soreness where the shot was given
- Tiredness
- Headache
- Muscle aches
- Mild fever
Serious but rare
- Severe allergic reaction (very rare)
Who should not get it
Skip it if you have had a severe allergic reaction to a previous dose or any ingredient. Talk to your doctor if you have had a serious vaccine reaction in the past.
Common questions
Do I still need a COVID-19 booster for travel?
CDC advises staying up to date with the latest recommended doses. Whether you need one before a specific trip depends on when you last had a dose.
What should I pack in case I catch COVID-19 abroad?
Rapid antigen tests, a well-fitting mask, and basic over-the-counter medicines. Have a plan for where you would isolate if you tested positive.
Are masks still useful during travel?
Yes. A well-fitting mask or respirator that covers your nose and mouth lowers your risk of catching or spreading respiratory viruses, especially on planes and in crowded indoor spaces.
Plan ahead: Talk to a travel health doctor 4 to 6 weeks before departure to confirm your COVID-19 vaccinations are up to date.
Source: CDC — COVID-19.
Disclaimer:This information is for general guidance only, based on CDC Travelers' Health. It does not replace advice from a qualified travel health professional. Consult a doctor 4–6 weeks before your trip.