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Country-specific exposure to illness (e.g., infectious disease) screening profile

Published: August 9, 2026Updated: August 16, 2026

This test evaluates potential exposure to illnesses common in specific countries, often used for travelers or individuals returning from international travel.

Quick summary

["Assesses risk of exposure to infectious pathogens based on regional disease prevalence."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
77984-3
Short code
Country exp to illness
Synonyms
Country exp to illness
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85610
SNOMED
396252006
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

This profile includes tests for specific pathogens or markers that may indicate exposure to illnesses endemic or prevalent in certain countries. Results help identify potential health risks tied to travel or migration patterns.

Common Tests Included

While exact tests vary by country-specific protocols, this profile may include serological (antibody) tests for viruses like hepatitis A/B, dengue, malaria, or other pathogens depending on the destination or region of exposure.

Why It’s Ordered

Healthcare providers may recommend this test for travelers to high-risk regions, individuals returning from international trips, or those with occupational exposure to specific pathogens in certain countries.

Sample Collection and Preparation

Blood is typically drawn from a vein in your arm. The sample is processed to separate serum or plasma for testing. Results are qualitative (positive/negative) for antibodies or markers indicating exposure.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: serum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What Does a Positive Result Mean?
A positive result indicates the presence of antibodies or markers in your blood that suggest you have been exposed to the illness in question. This does not always mean you were sick, but it confirms your body has recognized the pathogen.
What Does a Negative Result Mean?
A negative result means no detectable antibodies or markers were found in your sample for the tested pathogens. This does not rule out past exposure or infection, as antibodies may take time to develop after exposure.
How Often Should I Get This Test?
The frequency depends on your travel plans, health history, and region of exposure. Your healthcare provider will determine the best timing based on your individual needs and risk factors.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy