Quarantine
Quarantine is a mandatory period of isolation imposed to prevent the spread of infectious disease after exposure or arrival.
Quarantine is a mandatory period of isolation imposed to prevent the spread of infectious disease after exposure or arrival.
Also known as
Mandatory isolation, Health quarantine, Entry quarantine, Self-isolation
Why travellers need to know
Quarantine rules apply to people and animals, and both can derail your plans. For travellers, quarantine is most commonly triggered by missing vaccination certificates, arrival from an outbreak zone, or showing symptoms at immigration. For pets, quarantine rules are strict and vary dramatically by country. Post-COVID, many countries retain the legal framework to reimpose human quarantine at short notice. Checking requirements for every country in your itinerary, including transits, is the only prevention.
Real-world example
You're relocating to the UK with your dog. Despite having all vaccinations and a pet passport, your dog's rabies titre test was taken 2 days too late under APHA rules. At the border, your dog is placed in an approved quarantine kennel for 4 months at a cost of GBP 2,000+. You visit weekly through a glass partition. The rules were clear; the timing was off by 48 hours.
Country-specific notes
🇦🇺 Australia
Strict biosecurity; quarantine powers retained post-COVID
Australia maintains some of the world's strictest biosecurity controls. While COVID quarantine has ended, the Biosecurity Act gives authorities power to impose quarantine during future outbreaks. Biosecurity officers at airports actively screen arrivals for symptoms of notifiable diseases.
🇨🇳 China
Quarantine infrastructure remains in place
China maintains extensive quarantine infrastructure from its zero-COVID period. While routine entry quarantine has ended, authorities can reimpose requirements rapidly during outbreaks. Check the latest entry requirements within 48 hours of travel.
🇯🇵 Japan
Japan applies strict quarantine measures for specified infectious diseases under the Infectious Disease Control Law
Japan's Kansensho-ho gives authorities powers to quarantine travellers for listed diseases. During outbreaks, Japan has implemented strict entry quarantine with little advance warning.
Check Japan's current entry health requirements within 72 hours of departure — requirements can change rapidly during outbreak periods.
Frequently asked questions
Can I be quarantined at a foreign airport?
Yes. Port health officers at international airports have legal authority to quarantine arriving passengers who lack required health documentation, show symptoms of notifiable diseases, or arrive from outbreak zones. This applies even in transit. Requirements change rapidly during outbreaks.
Who covers the cost of quarantine if I am detained abroad?
Most standard travel insurance does not cover quarantine costs — they are typically treated as a public health measure, not a medical expense. Some policies include a quarantine daily allowance (£50–100/day). Check the policy wording carefully before travelling to countries with active outbreak protocols.
Your Nomedic record stores vaccination certificates and health declarations, so you can show compliance at any border without searching through papers.