Cause chronic infections are almost never found

Hepatitis A for Hepatitis Anus

The fecal-oral route is how it spreads around

Now let’s talk about serology

IgG anti-HAV tests for a past or chronic infection

IgM anti-HAV tests for an infection that’s acute

And there is a Hep A vaccine that’s used for prevention

Hepatitis B for Hepatitis Baby

Because vertical transmission is a common road

And Hepatitis B for Hepatitis Bodily fluids

Because sex and IV drug use are the other common modes

IgG anti-HBc indicates a chronic infection

Think IgG for gone because IgG anti-HBc

Means the acute infection is gone

And that’s how it should be

IgM anti-HBc indicates an acute infection

Think IgM for minute because IgM anti-HBc

Means they’ve only had it for a minute

And they’re still fighting it acutely

Now hang in there, just a little more serology

Anti-HBs is the Hepatitis B surface antibody with a B

Which indicates either a booster, as in a vaccine

or the patient has beat it and the infection has resolved completely

HBsAg is the Hepatitis B surface antigen with a G

Means the patient’s got it, it’s an active infection

Hep B generally can be acute or chronic

And there’s a vaccine that’s used for prevention

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