About YHDP
YHDP – Preventive medicine for everyone: helping people look up diseases, vaccines and vaccination schedules with clearly sourced information.
Who writes the content
Content on YHDP and in the An Tiêm app is written and compiled by Dr Hoàng Dương Bảo from the sources below. Every article and schedule cites the document, chapter and page it is based on. Please send professional feedback to baohd@yhdp.vn.
Professional sources
- Recommended vaccination schedules for all ages in Vietnam (3rd edition, 2026).
- Prevention of meningococcal disease in Vietnam (Science and Technics Publishing House, 2024; Vietnam Association of Preventive Medicine).
- Dengue fever (Vietnam Association of Preventive Medicine, 2024).
- Questions and answers on HPV vaccines (Vietnam Association of Preventive Medicine).
- Ministry of Health Decision 1622/QĐ-BYT of 08/5/2014: Guidance on surveillance, prevention and control of human rabies.
- Legal documents on vaccination on the legal documents page.
How schedules are reviewed
Each vaccination schedule has a version that records its source document, document number and effective date. Schedules are reviewed against their source documents; when a schedule changes, the system creates a new version awaiting review and keeps the content of the previous version. The review date and source are shown directly below each schedule.
How schedules are calculated
The website and the An Tiêm app share one schedule calculator: minimum age, minimum interval between doses, catch-up when a dose is late, and booster doses. For rabies schedules, dates are counted from the day of exposure. The result is a reference schedule; a health worker decides after a pre-vaccination screening.
The An Tiêm app
An Tiêm is YHDP's family vaccination record: it keeps a profile for each family member, sends vaccination reminders and tracks rabies vaccination courses. Health data is encrypted; you can export or delete it at any time.
Contact
- Operator
- Dr Hoàng Dương Bảo
- Address
- being updated
- Contact email
- baohd@yhdp.vn
Vaccination clinics that want to add or update their details on the map, and experts who want to comment on our content, please contact us at the email above.