From December 1999 to December 2001. many cases of hepatitis A were notified in the county of Belford Roxo involving individuals aged 0 to 79 years. Serum samples were collected to evaluate the prevalence of anti-hepatitis A virus (HAV) antibodies. to detect HAV-RNA and to correlate with possible risk factors of HAV infection. https://yeswellneses.shop/product-category/first-aid-kits/