Hepatitis B immunoglobulin (HBIG) injections can provide short-term protection against the hepatitis B virus. They may benefit people who have experienced recent exposure.
Some people get
This article will discuss what immunoglobulin injections do, who may need one, and their potential side effects.
HBIG provides short-term protection for people who may have experienced
HBIG injections can neutralize the hepatitis B virus and prevent it from establishing an infection in the body that can lead to illness.
The injection contains antibodies from plasma in human donors immune to the virus. Scientists call this passive immunity, and it provides temporary protection against hepatitis B infection when people have experienced exposure to the virus.
HBIG injections cannot provide long-term protection from hepatitis B. However,
Doctors recommend HBIG injections to people with exposure to the hepatitis B virus and who are at high risk for infection. The injection will reduce their risk of infection and illness.
People can get hepatitis B from
- sharing needles and syringes
- sharing toothbrushes, razors, or medical equipment
- having direct contact with a wound or sore
- being in healthcare facilities that do not have adequate methods of preventing infections from spreading
Hepatitis cannot pass through:
- sharing utensils, food, or water
- nursing an infant
It is helpful to discuss with a doctor when the right time is to get an HBIG injection. For example, the injection can interfere with other vaccinations, such as the one for MMR. A doctor must be aware of any recent vaccinations to adjust the dose of the HBIG injection.
HBIG injections effectively reduce the risk of infection in people with exposure to the hepatitis B virus.
The injections are most effective immediately after administration, as they can offer quick, short-lasting protection. Some evidence suggests the highest levels of immunity typically occur within the first 7 days, when around 80% of people reach peak immunity.
Doctors recommend getting the injection within 12–24 hours of possible exposure. It is unlikely to be beneficial 7 days after exposure via a needle and 14 days after sexual exposure.
The HBIG is safe and effective. However, it may cause side effects that can include:
- a fast heart rate
- joint and back pain
- soreness, redness, and inflammation at the injection site
In some cases, the injection could cause more serious side effects, such as severe allergic reactions.
The HBIG injection is
The hepatitis vaccine is a safe and effective way of protecting people against developing hepatitis B. It offers long-term protection against infection.
HBIG injections temporarily protect against hepatitis B infection in people who experience exposure to the virus that causes it. HBIG offers passive immunity with antibodies that neutralize the virus and prevent it from establishing an infection in the body.
It is most effective when doctors administer it immediately after possible exposure. The injection is safe but can cause some side effects, such as fever and pain at the injection site.
People who have not experienced exposure should receive vaccination against hepatitis B. The hepatitis B vaccine provides long-term protection against infection, which can have serious health consequences. HBIG injections are only suitable for people who have had exposure to the virus.