Serological testing of patient shows HBsAg, IgM anti-HBc and HBeAg positive. The patient has –
**Core Concept**
The patient's serological profile indicates an acute hepatitis B infection, characterized by the presence of HBsAg (hepatitis B surface antigen), IgM anti-HBc (immunoglobulin M antibody to hepatitis B core antigen), and HBeAg (hepatitis B e-antigen). This profile suggests viral replication and infectivity.
**Why the Correct Answer is Right**
The presence of IgM anti-HBc indicates a recent infection, as IgM antibodies are the first line of defense and are typically present in the early stages of infection. HBeAg is a marker of viral replication and infectivity, indicating that the patient is actively producing and shedding the virus. HBsAg is present in both acute and chronic infections, but in the context of IgM anti-HBc and HBeAg, it supports the diagnosis of acute hepatitis B.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, so we'll move on to the remaining distractors.
**Option B:** This option would be incorrect if it suggested a chronic hepatitis B infection (e.g., presence of IgG anti-HBc or absence of HBeAg).
**Option C:** This option might be tempting, but the presence of IgM anti-HBc and HBeAg suggests an acute infection, rather than a resolved or vaccinated status.
**Clinical Pearl / High-Yield Fact**
Remember that the presence of IgM anti-HBc and HBeAg in a patient with HBsAg positivity is highly suggestive of an acute hepatitis B infection. This profile requires prompt medical attention and consideration of antiviral therapy to prevent progression to chronic infection.
**Correct Answer:** C. Acute hepatitis B infection.