It doesn't mean you don't get typhoid fever in future after vaccination but the severity and risk is very less compared to other people

Typhoid vaccines (oral or injectable) offer protection but are not 100% effective. Getting infected after vaccination may be due to several reasons such as improper food/water hygiene, antibiotic resistance, or incorrect diagnosis. It is important to confirm if the repeated infections are truly typhoid (by blood culture or specific tests)

More history is required

Get physician consultation done Avoid self medication

Do blood culture test

Eat hygienic food and use boiled water for drinking . Widal is not only diagnostic test for typhoid . Go for blood culture . After vaccination if fever is der it may b other reasons .

Stop doing s widal test It is always going to comeback positive, even without fever