San Jose, CA: Your Gateway to International Travel Health
A complete guide for San Jose-based travelers preparing for international trips — vaccines, regulations, clinics, and expert resources across Silicon Valley and the South Bay.
San Jose & International Travel Health
San Jose is the capital of Silicon Valley and the largest city in Northern California — a global technology hub and one of the most internationally diverse cities in the United States. Home to the largest Vietnamese community outside of Vietnam, one of the largest Indian and Filipino communities in the country, and substantial Chinese, Mexican, Korean, and Afghan populations, San Jose sends an extraordinary volume of visiting-friends-and-relatives (VFR) travelers to destinations across Southeast Asia, South Asia, Latin America, East Africa, and the Middle East every year. Residents departing from San Jose International Airport (SJC), San Francisco International Airport (SFO), and Oakland International Airport (OAK) travel worldwide for family visits, business, tourism, humanitarian work, and religious pilgrimage.
Santa Clara County and the broader South Bay — including Sunnyvale, Santa Clara, Milpitas, Cupertino, and Gilroy — offer excellent access to travel health services through Stanford Health Care, private travel clinics, Santa Clara County Public Health, and CDC-recognized yellow fever vaccination providers. This guide brings together the essential travel-health information San Jose travelers need before heading overseas.
Healthcare in San Jose for Travelers
San Jose and the broader Santa Clara County region provide exceptional travel-health infrastructure for residents preparing for international trips. Travelers can access pre-travel consultations, routine immunization review, malaria prescriptions, destination-specific vaccine counseling, and post-travel assessment through private travel clinic chains, Stanford Health Care's academic travel medicine program, Santa Clara Valley Medical Center, occupational health departments at major tech companies, and a robust network of community health centers serving the South Bay's diverse population.
State Health Authority
The California Department of Public Health (CDPH) oversees immunization policy statewide and certifies authorized yellow fever "uniform stamp" holders who can administer the vaccine and validate the International Certificate of Vaccination or Prophylaxis (ICVP) for travelers departing from San Jose and across California. Santa Clara County Public Health supports local immunization programs and the California Immunization Registry (CAIR).
Academic Travel Medicine
Stanford Health Care — one of the world's premier academic medical centers, located in neighboring Palo Alto — offers specialist travel medicine and infectious disease services including pre-travel evaluation, destination-specific vaccines, malaria prophylaxis, altitude counseling, and post-travel illness assessment for San Jose and South Bay patients.
Private Travel Clinics
Passport Health operates multiple clinics across the South Bay including locations in San Jose, Sunnyvale, and Milpitas. These clinics offer yellow fever, typhoid, rabies, hepatitis A/B, Japanese encephalitis, and additional travel vaccines with same-week appointments often available for San Jose-area residents and business travelers.
Vaccine Regulations in California
California has one of the most structured school immunization frameworks in the United States. For outbound travel from San Jose, however, entry rules are set by the destination country rather than by the state itself. California's main role for travelers is certifying yellow fever providers, maintaining CAIR, and ensuring strong routine vaccination standards across a highly mobile and internationally diverse population.
School Entry Requirements
Children in California — including San Jose Unified, East Side Union High School District, and other Santa Clara County school districts — must receive required immunizations to attend public and private schools and child-care facilities. Required vaccines include DTaP/Tdap, polio, MMR, hepatitis B, and varicella according to age and grade rules.
Medical Exemptions Only
California does not allow new personal-belief exemptions for school and child-care entry. New medical exemptions must be issued through CAIR-ME by a California-licensed MD or DO and must meet state criteria — one of the strongest school vaccine mandates in the nation.
International Travel Rules
California does not require residents to be vaccinated before leaving the state, but many countries require or recommend specific vaccines. Yellow fever is a legal requirement for entry to parts of tropical Africa and South America, and hepatitis A, typhoid, Japanese encephalitis, and malaria prevention are among the most commonly discussed vaccines for San Jose's vast VFR traveler population.
Routine Vaccines for Children in San Jose
San Jose follows California's nationally recommended childhood and adolescent immunization schedules. For travel medicine, routine vaccines matter just as much as travel-specific shots. Measles, polio, hepatitis A, Japanese encephalitis, and meningococcal disease remain important international risks, especially for the many San Jose families who travel to visit relatives in Vietnam, India, the Philippines, Mexico, South Korea, and Afghanistan. San Jose's extraordinary concentration of VFR travelers makes destination-specific travel vaccine planning a near-universal need.
| Vaccine | Disease(s) Prevented | Typical Schedule | Notes for Travelers |
|---|---|---|---|
| DTaP / Tdap | Diphtheria, Tetanus, Pertussis | 5 childhood doses; adolescent Tdap booster | Important for wound and respiratory protection during international travel |
| Polio (IPV) | Poliomyelitis | 4 doses in childhood | Some travelers to polio-affected areas may need an adult booster before departure |
| MMR | Measles, Mumps, Rubella | 2 doses | Measles remains one of the most important routine vaccines for international travel |
| Varicella | Chickenpox | 2 doses | Important for children and teens without prior disease or vaccination history |
| Hepatitis B | Hepatitis B virus | 3-dose infant/childhood series | Essential baseline protection for travel, especially for longer stays or medical care abroad; high priority for families traveling to Vietnam, Philippines, and South/Southeast Asia |
| Hepatitis A | Hepatitis A virus | 2 doses beginning at 12 months | High-priority vaccine for travel to many destinations with food- and water-borne risk; critical for San Jose's vast VFR traveler population |
| Hib | Haemophilus influenzae type b | 3–4 doses | Important routine pediatric protection, especially for younger children |
| PCV | Pneumococcal disease | 4-dose series | Helps reduce severe bacterial disease risk during travel |
| Rotavirus | Severe diarrheal disease | 2–3 doses in infancy | Relevant because diarrheal illnesses remain common in many travel destinations |
| MenACWY | Meningococcal disease A, C, W, Y | 11–12 years; booster at 16 | Required for Hajj/Umrah — relevant for San Jose's Afghan and Muslim communities — and important for parts of sub-Saharan Africa |
| HPV | Human papillomavirus | 2–3 doses beginning age 11–12 | Not travel-specific, but part of complete adolescent preventive care |
| Influenza | Seasonal influenza | Annually | Seasonality differs by region and hemisphere; timing matters for travel |
| COVID-19 | COVID-19 | According to current CDC age guidance | Destination policies can change; verify current rules before departure |
Routine Vaccines for Adults in San Jose
Adult travelers should not assume childhood immunizations remain sufficient for life. San Jose travel clinics typically review tetanus status, influenza, COVID-19, hepatitis A and B, shingles, pneumococcal vaccination, and any destination-linked concerns such as Japanese encephalitis, meningococcal protection, or a polio booster. Given San Jose's extraordinary concentration of VFR travelers — particularly to Vietnam, India, the Philippines, and Mexico — hepatitis A, hepatitis B, typhoid, and Japanese encephalitis are among the most frequently recommended vaccines at South Bay travel clinics.
Td / Tdap Booster
Adults should stay current with tetanus-containing boosters, generally every 10 years. Travel injuries, trekking, rural exposure, and minor wound care abroad all make this review important.
Every 10 yearsInfluenza
Annual flu vaccination remains a key routine recommendation. Travelers crossing hemispheres or traveling during regional flu season should review timing carefully before departing from SJC, SFO, or OAK.
AnnualCOVID-19
COVID-19 vaccination recommendations are updated over time. San Jose travelers should confirm the current CDC age/risk guidance and any destination-specific documentation requirements before travel.
Current guidanceHepatitis A & B
Travel clinics frequently prioritize hepatitis A and B for adults who were never vaccinated or have incomplete records. Especially critical for San Jose's large Vietnamese, Filipino, Indian, and Mexican traveler populations visiting destinations where both viruses are endemic.
Catch-upMeningococcal
Required for Hajj/Umrah — relevant for San Jose's large Afghan and Muslim communities — and recommended for travelers to Africa's meningitis belt and students in group settings.
Risk-basedPneumococcal & Shingles
Older adults and those with certain conditions may need pneumococcal vaccination and shingles protection. Travel is a good time to update general preventive care.
Age / risk basedThe Three Categories of Travel Vaccines
San Jose travel clinics generally divide travel immunization planning into three practical groups: routine vaccines, vaccines required for legal entry, and vaccines recommended because of itinerary-specific risk. Given San Jose's exceptional VFR traveler concentration, recommended vaccines — particularly Japanese encephalitis, typhoid, and malaria prophylaxis — are discussed at a higher frequency here than at most U.S. travel clinics.
| Travel Vaccine | Category | Key Destinations | Notes |
|---|---|---|---|
| Yellow Fever | Required | Tropical Africa, parts of South America | Must be administered by an authorized yellow fever stamp holder; certificate becomes valid after 10 days |
| Typhoid | Recommended | South Asia, Southeast Asia, Mexico, Africa, Latin America | Available as oral or injectable vaccine; extremely high priority for San Jose's Vietnamese, Indian, Filipino, and Mexican VFR travel community |
| Japanese Encephalitis | Recommended | Vietnam, rural India, Southeast Asia, East Asia | One of the most frequently discussed travel vaccines at South Bay clinics given San Jose's very high volume of travel to Vietnam, India, and Southeast Asia; important for rural and longer stays |
| Rabies (pre-exposure) | Recommended | Asia, Africa, Latin America; remote itineraries | Important for animal contact risk in Vietnam, India, and the Philippines — top destinations for San Jose VFR travelers — where post-exposure care access may be limited in rural areas |
| Cholera | Recommended | Selected high-risk destinations | Used selectively depending on destination and humanitarian or outbreak-related travel |
| Meningococcal ACWY | Required / Recommended | Saudi Arabia (Hajj/Umrah), Africa's meningitis belt | Legal requirement for some pilgrims and an important risk-based vaccine — relevant for San Jose's sizeable Afghan and Muslim communities |
| Hepatitis A | Recommended | Vietnam, India, Philippines, Mexico, and many low- and middle-income destinations | Among the single most important travel vaccines for San Jose's VFR traveler population; catch-up rates are high among adults in immigrant communities who were vaccinated abroad on different schedules |
| Malaria Prophylaxis | Prescription Rx | Sub-Saharan Africa, South and Southeast Asia, parts of Latin America, parts of India | Not a vaccine; medication choice depends on region, resistance, duration, and medical history. Frequently needed for San Jose travelers visiting rural India, Vietnam, the Philippines, and Mexico. |
Main Travel Health & Vaccine Centers in San Jose & the South Bay
San Jose travelers benefit from one of the most accessible travel clinic networks in California, with multiple Passport Health locations across the South Bay, Stanford Health Care in nearby Palo Alto, and Santa Clara Valley Medical Center serving the county's diverse uninsured and underinsured population. Below are representative providers serving San Jose and the wider South Bay.
Downtown & Central San Jose
111 W. St. John St, Suite 1020, San Jose, CA 95110
(408) 288-8060
San Jose's downtown private travel clinic offering yellow fever, typhoid, hepatitis A and B, rabies, Japanese encephalitis, meningococcal, malaria prophylaxis, and routine travel vaccine services with itinerary-specific counseling. A primary first stop for San Jose residents and Silicon Valley business travelers preparing for international travel.
751 S. Bascom Ave, San Jose, CA 95128
(408) 885-5000
Santa Clara County's flagship public hospital, providing emergency, inpatient, and infectious disease specialist care for all county residents regardless of insurance status, including post-travel illness assessment for the South Bay's large uninsured and underinsured immigrant traveler community.
1191 Meridian Ave, San Jose, CA 95125
(408) 457-7100
A federally qualified health center (FQHC) serving San Jose's Vietnamese, Mexican, and South Asian communities with primary care, immunization services, hepatitis A and B vaccination, and travel health guidance for underserved residents preparing for international travel.
Sunnyvale / Santa Clara
1195 W. Fremont Ave, Suite 2, Sunnyvale, CA 94087
(408) 733-0560
Silicon Valley's travel vaccine clinic serving Sunnyvale, Santa Clara, Mountain View, and the heart of the tech corridor — an exceptionally internationally mobile community — with yellow fever, typhoid, Japanese encephalitis, and full travel immunization services.
700 Lawrence Expy, Santa Clara, CA 95051
(408) 851-1000
One of Kaiser Permanente's largest Northern California hospitals, offering travel medicine services, emergency care, and infectious disease consultation for Kaiser members across the South Bay including San Jose, Sunnyvale, and Santa Clara.
Milpitas / North San Jose
160 S. Abel St, Suite 1, Milpitas, CA 95035
(408) 942-9400
North San Jose travel vaccine clinic serving Milpitas, Berryessa, and Alum Rock — communities with very high concentrations of Vietnamese, Indian, and Filipino VFR travelers — with comprehensive travel immunization services and malaria prophylaxis prescriptions.
225 N. Jackson Ave, San Jose, CA 95116
(408) 259-5000
Full-service acute care hospital in East San Jose serving the city's large Vietnamese and Latino communities with emergency care, internal medicine, and infectious disease services for post-travel illness assessment.
Palo Alto / Stanford (Academic Resource)
300 Pasteur Dr, Stanford, CA 94305
(650) 723-4000
The South Bay's premier academic travel medicine resource, offering specialist pre-travel evaluation, destination-specific vaccines, malaria prophylaxis, complex itinerary counseling, and expert post-travel illness diagnosis for San Jose and South Bay residents seeking the highest level of care.
300 Pasteur Dr, Stanford, CA 94305
(650) 723-4000
One of the world's leading academic medical centers, providing advanced emergency, infectious disease, and specialty care for complex travel-related illness cases from across the South Bay and Northern California.
📍 San Jose & South Bay Travel Health Centers & Major Hospitals
Click any marker to view details and get Google Maps directions. Orange = Travel Health Clinic | Blue = Major Hospital
Pre-Travel Health Checklist for San Jose Travelers
Whether you are flying from San Jose International Airport (SJC), San Francisco International Airport (SFO), or Oakland International Airport (OAK), this preparation timeline helps ensure you leave with the right protection and paperwork.
| Timeframe | Action | Details |
|---|---|---|
| 6+ Weeks Before | Book a travel medicine consultation | Arrange an appointment with Passport Health San Jose, Sunnyvale, or Milpitas; Stanford Travel Medicine; Kaiser Permanente; or another South Bay travel provider. Review CDC destination guidance and visa or vaccination rules. |
| At Your Visit | Bring all vaccine records | Review routine immunizations, destination-specific vaccines, malaria prevention, altitude advice, and travel-related prescriptions. Request your California Immunization Registry (CAIR) record if your personal records are incomplete — especially important for travelers vaccinated abroad on different schedules. |
| Follow-Up Visits | Complete multi-dose series | Rabies pre-exposure, Japanese encephalitis, hepatitis A/B catch-up, and some other regimens may need spacing between doses — plan follow-up appointments promptly. |
| 1–2 Weeks Before | Confirm documents and medications | Check that your yellow fever certificate is complete if required, and pack prescriptions, insect repellent, sunscreen, oral rehydration salts, and regular medicines in carry-on luggage. |
| On Return | Monitor symptoms | Fever, rash, diarrhea, jaundice, or unexplained illness after international travel should trigger medical review, especially if you visited tropical or malaria-risk regions. Report to Santa Clara Valley Medical Center, Stanford Hospital, or your primary care provider. |
Ready to Travel from San Jose?
Start your travel health preparation early. San Jose and South Bay travel clinics, Stanford Health Care, and Santa Clara County's health resources can help protect you wherever your itinerary takes you.
This article is for informational purposes only. Always consult a licensed healthcare provider for personalized travel-health advice. Information should be rechecked before travel because recommendations and entry rules can change.