There are at least 5 types of Viruses commonly causing liver diseases named alphabetically as Hepatitis A,B,C,D and E.The A and E viruses are acquired from contaminated food water,whilst B,C and D have different modes of transmissions,either through blood or blood products or directly from person to person via sexual contact,or from the mother to the baby at the time of delivery.
Hepatitis B virus can be cleared effectively by the body's own defence mechanism without any specific treatment in a majority of adults who are exposed to it.However,in children especially newborn and infants,the body's defence mechanism may not be capable of clearing the virus.
Persistence of the virus can cause irreparable damage to the liver in around 20%(Cirrhosis)and lead to the liver Cancer in around 2%.Although treatment against Hepatitis B is available in the form of injections (Interferous) and tablet (Lamivudine) it helps in stopping the viral multiplication only up to a maximum of 50%.
The best way to tackle the problem would therefore be prevention of transmission of the virus by strict implementation of mandatory testing of blood for Hepatitis B in blood banks,Proper sterilisation of needles,Syringes,surgical instruments and use of condom's during risky sexual behaviour.
Vaccination against Hepatitis B is safe and effective in over 95% of those who have taken the full three doses. This vaccination is specific and gives protection only against Hepatitis B and not against the other viruses or all causes of Jaundice,as is some times wrongly perceived by the general public.
The World Health Organisation(WHO) has advocated that all children in countries with prevalence of Hepatitis B carrier rate more than 2% of the population should be vaccinated.So far 90 countries have included it in the respective immunisation programmes. In India the vaccination programme needs careful monitoring by medical personnel to ensure that the full course of three doses is completed.All adults need not to be vaccinated,since 90% of those exposed clear the virus spontaneously.
On the basis of the available data,it is estimated that 4.7% if India's population carries the Hepatitis B virus.Whilst it is difficult to be accurate about the exact figure,considering the population of India even a small percentage becomes a health burden.
Hepatitis B has recently been under focus in India due to widespread media publicity,because of undue anxiety and false alarms in the minds of general public,leading to a large scale of vaccination camps.Such camps are ineffective if all the three doses are not given at proper time interval and the target group is the general adult population which is not at a high risk of exposure to Hepatitis B.
Among the risk factors that help to decide who should receive Hepatitis B vaccinations are the possibilities of exposure to the virus and becoming a chronic carrier due to inability to clear the virus and the funds available. Those adults and children who are at a high risk of exposure to the Hepatitis B are however a priority for vaccination .These groups include:
1.Health Care Personnel (Ward boys,Ayahs,Technicians,Nurses,Doctors,etc.)
2. Children born to mothers with Hepatitis B virus infection.
3. Recpients of large or multiple transfusion of blood and blood products.
4.Commercial Sex workers and sexual partners of Hepatitis B positives.
5.Patients with chronic renal failure.
6.Inmates and staff of institutions caring for the physically or mentally challenged.
In India, with limited resources available for health care,at least the high-risk groups should be protected before universal immunisation is set as a goal.
Categories:
food habits
Good Health
Good Thoughts
health
Human Organs
Read More