What are infections?
An infection begins when a microbe gets past your outer barriers, such as skin and the lining of your airways and gut, and starts to multiply. Your body responds in stages. Sensors raise the alarm, messenger proteins call in help, and specialized white blood cells work to contain and clear the invader. Afterward, memory cells remain, ready to respond faster if the same microbe returns.
How your genes play a role
Genetic variation can influence each stage. HLA genes affect which microbial fragments your immune cells can recognize. Toll-like receptor genes shape how quickly you detect common microbial patterns. Genes such as CD4 and CD8 relate to the T cells that coordinate and carry out targeted defense, while ACE2 encodes a protein on cell surfaces that some viruses use as an entry point.
People often notice that they and their family members respond differently to the same seasonal bugs. Some genetic insight can help explain part of that variation. It can also help you and your clinician think about prevention in a more personal way, from vaccination conversations to rest and recovery habits. The aim is not to worry, but to understand the system that is already working for you every day.
What your report shows
Your Infections results are explained in plain language in your private EvoDNA account, alongside the other areas in your kit.
- Recognition rangeHow your HLA variants may shape the range of microbial fragments your immune cells can identify.
- First responseVariants in sensor genes linked to how quickly your body may notice an infection.
- Response intensityCytokine gene patterns that may influence how strongly your body reacts during an illness.
- Cell entry pointsVariation in surface proteins that certain viruses are known to use to enter cells.
| Gene | What it does | Result |
|---|---|---|
| HLA-B | Helps your cells display pieces of viral proteins so… | Typical |
| TLR2 | Encodes a sensor that recognizes molecules on the surface… | Moderate effect |
| CD4 | Marks helper T cells, which coordinate many parts of… | Typical |
Each result comes with a plain-language explanation and practical points to discuss with your clinician.
Illustration only. Your report reflects your own genetic results.
Genes we analyze
| Gene | Role |
|---|---|
| HLA-B | Helps your cells display pieces of viral proteins so killer T cells can find and remove infected cells. |
| TLR2 | Encodes a sensor that recognizes molecules on the surface of many bacteria and fungi. |
| CD4 | Marks helper T cells, which coordinate many parts of the immune response to infection. |
| NOS2 | Produces an enzyme that makes nitric oxide, which immune cells can use to help fight microbes. |
| ACE2 | Encodes a protein on many cell surfaces that helps regulate blood pressure and that some viruses use to enter cells. |
Full panel: 15 genes
HLA-A, HLA-B, HLA-C, TLR1, TLR2, TLR4, IL6, TNF, IFNγ, IL10, CD4, CD8, NOS2, LPS, ACE2
Putting results to use
Many people use their results as a starting point for conversations with their clinician about:
Simple, regular handwashing is one of the most commonly recommended ways to reduce exposure to germs.
Giving your body time to recover is often discussed as an important part of getting back to full strength.
Many people review their vaccination schedule with their clinician as part of routine care.
Adequate protein, fluids and micronutrients help supply what immune cells need during recovery.
Questions
Will my report tell me which infections I will get?
No. Genetics can show tendencies in how your immune system may recognize and respond to microbes, but exposure, vaccination, age and overall health matter a great deal. Your report is educational and not a diagnosis.
Why do two people react so differently to the same illness?
Differences in immune genes, prior exposures, age, sleep, stress and general health can all contribute. Genetics is one piece of that picture.
Is ACE2 something I should be concerned about?
ACE2 is a normal protein with useful roles in the body, including blood pressure regulation. Variation in it is an area of active research, and your report presents it as context rather than a risk label.
Only interested in this area? The Infection Risk & Recovery Genetic Report is available on its own for $99.00.
