 Hi, I am Dr. Somnath Mitra, Consultant Physician in Manipal Hospital. I have been working in Manipal Hospital for the last 17 years. Now, what is immunization? Achieving resistance to infection is immunization. And that can be achieved by using vaccines which are biological agents which prevents infection and which stimulates the natural antibodies in the body. And it helps in that way in preventing infection and all. So, vaccines, they prevent infections and also eliminates infection thereby even many of the life-threatening infections are controlled in the community. Now, there is a very good immunization schedule in our country supported by the Indian Association of Pediatrics which has been a great success. For example, if you look at the Pulse Polio Program, the WHO has declared that India is completely polio-free. In the year 27th March 2014, WHO declared it is free from polio. Our country is free. So, that is the success of the immunization. Now, in our country, there is no adult immunization program which is existing. So, and as you see, in the era of globalization and urbanization, the lifespan has increased. Thereby, the communicational diseases, all the infectious diseases are increasing. So, it is important that they should protect themselves and the vaccines are the only and easy way to protect yourself from infection. And more so people, those who are immunocompromised, like chronically immunosuppressed like in cases where they have chronic lung, liver, kidney diseases, they are very vulnerable to infections. So, also healthcare workers like doctors, nurses and all, they are also very prone to infections. So, they should protect themselves with vaccines. Thereby, that will reduce the sickness, illness, morbidity and mortality. So, some of the vaccines which are recommended for adults in our country are commonly our hepatitis B, then there is a measles, mumps, rubella, diphtheria, tetanus, then the stifled vaccine, influenza vaccine, then manyococcal vaccines, hemofluenza influenza vaccines, hepatitis A vaccines, pneumococcal vaccines. All these vaccines, you know, if you take it, it gives you protection for life long. Sometimes you need to give a booster because that is when the immunity falls, you need to boost the immunity by giving an additional injection. Even you see in dengue-prone areas, in places where dengue, now already in 10 countries it has been licensed for use, although in our country it is not. So, thereby the dengue, that fatal disease can be prevented by taking a vaccine when it will be available, already phase 3 trial is on. Once it is approved, it will be available for use in dengue-prone areas, infected areas. Now, today I will talk on hepatitis B vaccine. As you know that hepatitis B infection is quite a fatal disease and very commonly acquired by, I mean, percuteness or body-to-body contact, sexual contact, or by taking any contaminated use of syringe, IVA or any other treatment by surgery when it is not done in a proper place. So, this lead to hepatitis B infection. So, you can protect yourself by taking hepatitis B vaccine. There are three doses required, that is at the beginning, one month after and after six months. And that generally gives an immunocompetent person, those who have a normal immunity, it gives a protection for almost lifelong. But in case if you want to check it after 10 years, the immunity has fallen, then you can always retest by doing a hepatitis B surface antibody. And if the value is above 10, then you are protected. That means it gives you a lifelong protection. If it falls, then again you can take three doses of vaccination at a one month interval. Thereby, it again confers you immunity lifelong. On the occasion of World Immunization Week, I, Dr. Somnath Mitra from Manipal Hospital, recommend the following vaccines for adults. One is hepatitis B, hepatitis A, then varicella vaccine, typhoid vaccine, pneumococcal vaccine, diphtheria tetanus vaccine and many other vaccines are there. These are the common vaccines which you can take to prevent infection, life threatening infection. Thank you.