Mexico, Jan. 29. About 20 percent of malignant tumors are caused by viruses, of which five are the major human papillomas, hepatitis B and C, human T lymphotropic type 1 (HTLV1), and Epstein-Barr.
According to the World Health Organization (WHO), nearly 325 million people suffer from chronic hepatitis B or C virus infection that can end with liver cirrhosis and liver cancer.
Every year, about 25,000 cases are registered in Mexico.
The main route of HPV infection is sexual transmission; while hepatitis and HTLV1 share needle and kiss needles, Epstein-Barr.
As for human papillomavirus (HPV) it is estimated that 7 out of 10 sexually active Mexicans are the carriers of this disease.
Of the more than 100 species that exist, it is known that there are 13 oncogenes or high risks such as type 16 and 18.
These types of HPV are responsible for 70 percent of cervical cancer and pre-cancerous cervical lesions.
In addition, there are studies linking HPV with anus, vulva, vagina and penis cancer, according to WHO data.
Human T lymphotypic type 1 virus (HTLV1) is associated with some types of leukemia, and Epstein-Barr or "kissing illness" is a herpes virus that affects adults and spreads through the pelvis, but in all cases does not create a tumor, said Horacio Astudillo de la Vega, a researcher of oncogenesis.
An expert said that cancer was the third cause of death in Mexico, and 14 out of every 100 Mexicans die of this disease.
If the condition is discovered early, up to 80 percent of patients will have the possibility of cure.
However, the country is in most cases diagnosed in advanced stages, so Astudillo de la Vega called the population to diagnose genomic tests that exist for these types of cancer, which, on a daily basis, are more accessible to the population.
Similarly, it is recommended to use vaccines to prevent the spread of certain viruses such as hepatitis B and HPV.