Superdrug Introduces New Health Service for Fatigue Testing on UK High Streets

Hepatitis B is a viral infection that affects the liver and can cause both acute and chronic disease. The hepatitis B virus is transmitted through contact with infected blood or other body fluids. Common routes of transmission include from mother to child during birth, through unprotected sexual contact, sharing needles or other drug injection equipment, and exposure to contaminated medical instruments. Healthcare workers are also at risk through accidental needle stick injuries. The virus can survive outside the body for at least seven days and still cause infection during this time.

Laboratory testing plays a crucial role in diagnosing hepatitis B infection and monitoring disease progression. The primary screening test is the hepatitis B surface antigen test, which detects the presence of the virus in the bloodstream. If this test is positive, additional tests are performed to determine whether the infection is acute or chronic. These include hepatitis B core antibody tests, hepatitis B e-antigen, and hepatitis B viral DNA quantification. Liver function tests are also important to assess how well the liver is working and whether there is any liver damage. These tests measure levels of liver enzymes, bilirubin, and proteins produced by the liver.

For chronic hepatitis B patients, regular monitoring through laboratory tests is essential. Viral load testing measures the amount of virus in the blood and helps doctors determine if antiviral treatment is needed and whether treatment is working effectively. Liver enzyme tests are repeated periodically to check for inflammation and damage. In some cases, additional specialized tests may be recommended, including tests for hepatitis D co-infection, which only occurs in people with hepatitis B, and alpha-fetoprotein testing to screen for liver cancer, as people with chronic hepatitis B have an increased risk of developing this condition.

Prevention of hepatitis B is possible through vaccination, which is safe and effective. Testing is recommended for people at higher risk, including those born in areas where hepatitis B is common, people with HIV, household contacts of infected individuals, and people who inject drugs. Early detection through laboratory testing allows for timely medical intervention and monitoring, which can prevent serious liver complications such as cirrhosis and liver cancer. Anyone concerned about possible exposure to hepatitis B should consult their healthcare provider about appropriate testing.