Migration and Refugee Health

Definitions & Scope - Who's Moving Where

• Migrant: Individual moving from their usual place of residence, across international borders or within a state.
  • International Migrant: ~281 million globally (UN, 2020).
  • Internal Migrant: Moves within their own country; often outnumbers international migrants.
• Refugee: Person outside their country of origin due to well-founded fear of persecution (1951 Refugee Convention criteria: race, religion, nationality, social group, political opinion).
• Asylum Seeker: Individual seeking international protection; refugee status claim not yet determined.
• Internally Displaced Person (IDP): Forced to flee home due to conflict, violence, or disaster, but remains within their country's borders.
• Key Migration Corridors: South-Asia → Middle East; Latin America → North America; Intra-Africa; Intra-Asia.

⭐ Globally, nearly 1 in 30 people is a migrant, and over 80% of refugees are hosted in developing countries.

Health Risks - Bugs & Burdens

• Communicable Diseases:
  • Tuberculosis (TB): High prevalence from endemic areas, reactivation risk. Screen all suspected individuals.
  • HIV/AIDS, Hepatitis B & C: Variable prevalence; screening crucial.
  • Malaria: If from endemic zones; consider prophylaxis/prompt treatment.
  • Parasitic infections: E.g., helminths, schistosomiasis, strongyloidiasis.
  • Vaccine-Preventable Diseases: Measles, polio, diphtheria due to disrupted immunization schedules.
  • Acute Respiratory Infections (ARIs) & Diarrheal diseases: Common in crowded settings with poor sanitation.
• Non-Communicable Diseases (NCDs):
  • Hypertension, Diabetes Mellitus: Exacerbated by stress, interrupted care, dietary changes.
  • Cardiovascular diseases, chronic respiratory conditions.
• Mental Health Conditions:
  • Post-Traumatic Stress Disorder (PTSD), anxiety, depression: High rates due to trauma, loss, and displacement stressors.
• Nutritional Deficiencies:
  • Malnutrition: Protein-energy malnutrition (PEM).
  • Micronutrient deficiencies: Iron deficiency anemia, Vitamin A, Iodine deficiencies.
• Other Health Issues:
  • Injuries & trauma: From conflict, hazardous travel.
  • Reproductive health: Increased risks, lack of access to care.

⭐ Latent Tuberculosis Infection (LTBI) prevalence can be significantly higher (e.g., 15-50% or more depending on origin) in refugee and migrant populations compared to host populations; targeted screening and preventive therapy are key interventions.

Clinical Approach - Checkups & Care

• Initial Triage & Assessment:
  • Migration history (trauma, exposures).
  • Full physical exam, vitals.
  • Mental health (PTSD, depression).
  • Nutritional status (MUAC, BMI).
• Key Screening Areas:
  • Infectious: TB (IGRA/CXR), HIV, Hep B/C, parasites.
  • Vaccination: Review & update.
  • NCDs: HTN, DM (risk-based).
  • Age/gender specific: Antenatal, cervical cancer.
• Care Principles:
  • Culturally sensitive communication (use interpreters).
  • Address health literacy.
  • Ensure continuity of care, appropriate referrals.

⭐ Screening for latent TB infection (LTBI) is critical in refugee populations due to higher prevalence; IGRA preferred over TST if BCG vaccinated.

Barriers & Solutions - Bridging Health Gaps

• Common Barriers:
  • Communication: Language, cultural beliefs, low health literacy.
  • Legal/Financial: Uncertain status, fear, high costs, no insurance.
  • Systemic: Discrimination, stigma, limited service availability/navigation.
  • Psychosocial: Trauma, stress, mental health issues (PTSD).
• Key Solutions:
  • Service Delivery: Culturally competent care, interpreters, outreach, mobile clinics.
  • Policy: Inclusive health policies, legal aid, ensuring access for all.
  • Empowerment: Health promotion, patient navigators, community health workers (CHWs).
  • Mental Health: Trauma-informed care, accessible MHPSS.
  • Collaboration: Inter-sectoral partnerships, international cooperation (e.g., WHO).

⭐ Migrants & refugees often face a "triple burden": communicable diseases (TB, Hepatitis), NCDs (Diabetes, HTN), & mental health conditions (PTSD, depression).

High‑Yield Points - ⚡ Biggest Takeaways

• Screening for infectious diseases (TB, Hepatitis B/C, HIV, parasites) is crucial.
• High rates of mental health conditions like PTSD, depression, anxiety.
• Address nutritional deficiencies such as iron, Vitamin D, and general malnutrition.
• Prioritize catch-up vaccinations for incomplete immunization status.
• Manage disrupted care for NCDs (e.g., diabetes, hypertension).
• Navigate cultural and language barriers for effective care.
• Uphold ethical access to care and informed consent.