Hepatitis B: Causes, Transmission, and Prevention Methods
What is Hepatitis B and how is it transmitted?
Hepatitis B is a liver infection commonly seen worldwide. The cause of this disease is the hepatitis B virus (HBV). The virus is mostly transmitted from person to person through blood, blood products, or body fluids containing the virus. Unprotected sexual intercourse, sharing needles, procedures performed with non-sterile medical instruments (for example, surgical interventions, tooth extraction), and transmission from mother to baby during Pregnancy or at birth are the main routes of spread. In addition, sharing unsterilized razors, scissors, and personal care instruments also constitutes a risk factor.
However, Hepatitis B is not transmitted through daily contact, eating or drinking from the same container, swimming in a pool, kissing, coughing, or sharing a toilet. It is very important to follow hygiene rules and avoid risky behaviors to reduce the spread of the virus.
Who is at risk?
Those who have unprotected sexual intercourse
Individuals who use intravenous drugs
Those who undergo non-sterile hairdressing, manicure/pedicure, or ear piercing procedures
Those who use shared toothbrushes, razors, or scissors
Those who receive surgical or dental treatment with unsterilized instruments
Newborns whose mothers have the hepatitis B virus
What is the course of hepatitis B infection?
Hepatitis B can progress silently without any symptoms in some people, and these individuals may only be carriers. However, in some cases, the disease can cause serious consequences by causing severe damage to the liver, progressing to cirrhosis or liver cancer.
Acute Hepatitis B: Symptoms and course
Acute hepatitis B infection usually appears between 6 weeks and 6 months after the initial transmission. While some individuals show no symptoms, others may develop the following symptoms:
Yellowing of the whites of the eyes and skin (jaundice)
Loss of appetite
Weakness and fatigue
High fever
Joint pain
Nausea or vomiting
Abdominal pain
The length of the incubation period may cause the person to transmit the virus to others without realizing they are ill. Rarely, during the acute period, a condition called “fulminant hepatitis,” characterized by sudden and severe liver failure, may develop. In this case, medical intervention is necessary.
What should be considered in the treatment of acute hepatitis B?
The disease is usually diagnosed with simple blood tests. During the acute infection period, patients are generally monitored with observation and supportive treatment. Rest and symptomatic treatment are essential. In severe cases, hospitalization may be required. During the acute period, it is important to avoid alcohol and smoking, maintain a healthy and balanced diet, avoid excessive physical exertion, and not use medication without medical advice.
Chronic Hepatitis B: The insidious progressing risk
If the symptoms of the disease persist for more than 6 months or if the virus remains in the body, this condition is called “chronic hepatitis B.” Especially children and infants are at higher risk for chronicity. Chronic hepatitis B can often progress insidiously, and a person may only learn about this condition during routine check-ups.
Can chronic hepatitis B be treated?
Chronic hepatitis B may not be completely cured, but with appropriate treatment, the activity of the virus can be reduced, the liver can be protected, and the risk of developing complications can be significantly decreased. To prevent serious outcomes such as cirrhosis or liver cancer, regular doctor check-ups and appropriate medication are recommended. Alcohol and smoking should be avoided, attention should be paid to dietary habits, and stress management should not be neglected.
How is hepatitis B diagnosed?
Hepatitis B can be diagnosed with various blood tests. These tests can determine whether a person has an acute or chronic infection, is a carrier of the virus, or has developed immunity. Your doctor will make a definitive diagnosis after determining the appropriate tests.
Is it possible to prevent hepatitis B with vaccination?
Today, hepatitis B is a largely preventable disease through safe and effective vaccination methods. The vaccine is usually administered in three doses (at 0, 1, and 6 months) and provides a high level of protection in most people. In current vaccination programs, routine hepatitis B vaccination is administered from infancy. In cases where immunity decreases over time, additional doses may be required. Vaccination is not recommended for chronic patients and actively infected individuals.
Hepatitis B Testing in Pregnant Women and Newborn Protection
If the disease is detected through routine hepatitis B screening performed on mothers during pregnancy, both the vaccine and immunoglobulin are administered to the baby immediately after birth to provide protection against the virus. This approach is highly effective in preventing chronicity and liver damage in infants.
Awareness and Prevention in Society
One of the most effective methods in preventing the spread of hepatitis B is to inform the public correctly. Knowing the routes of transmission, paying attention to personal hygiene, and taking advantage of vaccination opportunities play a major role in controlling the disease.
Can hepatitis B heal on its own?
Some individuals can go through hepatitis B infection without showing any symptoms and gain lifelong immunity. However, since the course of the disease varies from person to person, it is important to follow the doctor's monitoring and recommendations.
Frequently Asked Questions
1. How is hepatitis B transmitted?
Hepatitis B is transmitted through blood, sexual contact, or body fluids carrying the virus. Unprotected sexual intercourse, sharing needles, and contact with unsterilized medical and cosmetic instruments are the main routes of transmission. It is not transmitted through daily social contact.
2. What is chronic hepatitis B, what are its symptoms?
Chronic hepatitis B is when the virus remains in the body for more than 6 months. It usually does not cause symptoms, but sometimes mild fatigue, loss of appetite, or abdominal pain may occur. It increases the risk of cirrhosis or liver cancer.
3. Who is recommended to receive the hepatitis B vaccine?
The vaccine is recommended for infants, healthcare workers, high-risk individuals, and babies born to mothers with hepatitis B. It is not administered to those with chronic disease or active infection.
4. What should those who have had acute hepatitis B pay attention to?
Avoiding alcohol and smoking, eating healthily, avoiding excessive exertion, and not using medication without a doctor's recommendation are necessary.
5. What does it mean to be a carrier?
Carriers usually do not show symptoms but can transmit the virus to others. Regular monitoring and taking precautions to prevent transmission are important.
6. Does hepatitis B pass to the baby during pregnancy?
Yes, the virus can be transmitted to the baby during pregnancy or at birth. To reduce this risk, the baby is given the vaccine and immunoglobulin immediately after birth.
7. If hepatitis B heals on its own, can it be contracted again?
If a person has had the infection and gained immunity, they will not be infected by the same virus again. However, protection is needed against other types of hepatitis viruses.
8. Which tests are performed for the diagnosis of hepatitis B?
Blood tests such as HBsAg, Anti-HBs, and Anti-HBc are used to determine the status of the infection and whether the person is immune.
9. Is it possible to treat chronic hepatitis B?
Although chronic hepatitis B cannot be completely eliminated, the effects of the disease can be reduced with drug treatment and serious complications can be prevented. Regular medical follow-up is essential.
10. Does the hepatitis B vaccine cause side effects?
Generally, mild and temporary side effects are seen; the vaccine is considered safe.
11. How can I protect myself from hepatitis B?
Vaccination is the most effective method. Paying attention to personal hygiene, ensuring the safe use of blood and instruments, and avoiding risky behaviors are necessary.
12. Does a person who has had hepatitis B become immune?
HasIndividuals who recover from the disease usually develop immunity against the virus.
References
World Health Organization (WHO) – Hepatitis B Fact Sheet
Centers for Disease Control and Prevention (CDC) – Hepatitis B Information
European Association for the Study of the Liver (EASL) – Clinical Practice Guidelines: Management of Chronic Hepatitis B Virus Infection
Journal of Hepatology – Recommendations for diagnosis and treatment of hepatitis B