CDC travel health guidance
The CDC's destination-specific travel health pages (part of what's informally called the "Yellow Book" guidance) cover routine and destination-specific vaccine recommendations, any active health notices for a region, and general pre-travel health preparation. For Colombia specifically, this includes checking whether yellow fever vaccination applies to your specific itinerary — it's a regional requirement, not a nationwide one.
State Department travel advisories
The State Department publishes a 1–4 advisory level for every country, along with more specific regional guidance within larger countries. These are general safety advisories, not medical-tourism-specific, but they're a legitimate starting point — particularly for understanding whether any specific region within a country warrants extra caution.
How to actually use both before booking
Check both sources within a few weeks of booking
Guidance and advisory levels do change, so don't rely on information from months earlier.
Note any regional distinctions within the country
Broad country-level advisories often mask meaningful differences between the specific city or neighborhood where your clinic operates and other regions.
Confirm any vaccine requirements with your clinic directly
Ask specifically whether your itinerary touches any region with a yellow fever requirement.
Your clinic — whether it's a colombiadentist.co practice or a colombiastemcelltreatment.com program — should be able to tell you immediately whether your itinerary touches any region with a vaccine requirement.
The Takeaway
Neither resource is medical-tourism-specific, but both are free, official, and worth five minutes before you book — treat them as inputs, not the final word.