For the study, researchers assessed data on 27 types of cancer in 184 countries to determine possible association with infections classified as carcinogenic by the International Agency for Research on Cancer. Their research revealed infections cause approximately 2 million cancer cases annually, with a majority (80 percent) of those cancers occurring in underdeveloped areas of the world. HPV, Helicobacter pylori and hepatitis B and hepatitis C viruses were most frequently associated with cancer.
The researchers concluded more robust public health interventions, such as vaccinations, safer injections and antimicrobial treatments could reduce the number of cancer cases worldwide.
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