Nearly 300 million people have hepatitis b worldwide
A study last Monday (26) by researchers at the Polaris Observatory of the Center for Disease Analysis in the United States revealed a drastic worldwide scenario regarding the HPV virus.
The study shows that by 2016 about 300 million people were infected with hepatitis B virus (HBV) worldwide, at a prevalence of 3.9%, but 90% had not yet been diagnosed and only 5% of those who were to be treated received it.
Pregnant women are at high risk of passing the virus to their children and are the main source of the current epidemic of the disease. According to the study, only 1% of infected pregnant women were being treated properly so that this did not happen.
In Brazil, the researchers estimate a prevalence of 0.4% of the disease in 2016, equivalent to about 760,000 cases. Overall, this figure is one of the best compared to the global scenario.
Of the cases cited in the country, 212,000 (28%) were diagnosed, with 22,500 (12%) of the 184,000 patients eligible for treatment (viral load of more than 20,000 international units of virus DNA per milliliter of blood) in therapy. In contrast, there were no instances of infected pregnant women receiving antivirals to avoid passing the virus to their children.
How to change this scenario?
If hepatitis b is not treated, it can lead to serious health problems, including illness and cancer of liver, causing an estimated 600,000 annual deaths worldwide. But although the virus is extremely contagious, transmitted mainly from mother to child or among children, and has no cure, in recent decades a number of advances have made its eradication feasible: since 1981, a highly effective vaccine is available, and from In 1992, the WHO started recommending the vaccination of newborns, with the first of three doses being administered up to 24 hours after birth.
The hepatitis B vaccine is part of the national vaccination schedule and is mandatory. There are two types of hepatitis B vaccine: the first generation contains virus particles obtained from the plasma of virus donors, inactivated by the formalin; the second generation is prepared by genetic engineering method and obtained by DNA recombination technology (deoxyribonucleic acid). Learn more about the vaccine and what diseases it prevents.
The Centers for Disease Control and Prevention (CDC) ) of the United States reported a study of Zika-infected infants who had normal-sized heads at birth, but developed microcephaly only from five months to one year after birth. 13 children from Pernambuco and Ceará who were born with congenital Zika syndrome, identified in exams but without reduction of the skull.
The Unified Health System (SUS) will begin offering the human papillomavirus (HPV) vaccine as of March 10 for girls ages 9 to 13, health centers and public and private schools throughout the country. The dose, which helps protect against cervical cancer, will be available in the 36,000 public health posts throughout the year, according to the ministry.