Rates are also high in developing nations, where more than 80% of cervical cancer cases occur. Worldwide, cervical cancer is the third most common cancer among women and the second most frequent cause of cancer-related death, accounting for nearly 300,000 deaths annually. In developing nations, it is often the most common cause of cancer-related death among women and a leading cause of death overall. Virtually all cases of cervical cancer are caused by specific types of human papillomavirus (HPV). There are more than 100 types of HPV, of which more than 40 can be sexually transmitted.
Streptococcus pneumoniae are bacteria frequently found in the upper respiratory tract of healthy children and adults. These bacteria, however, can also cause a range of infectionsâfrom relatively mild ear infections to fatal pneumonia, meningitis, and sepsis.neumococcal infections are becoming more difficult to treat as bacteria become resistant to some of the most commonly used antibiotics. Antibiotic resistance has economic as well as clinical consequences.
Streptococcus pneumoniae. by Robert Ballough. Life History Streptococcus pneumoniae is found worldwide. The common host is the human body, in which it often does not cause disease but at other times it can cause diseses in particular, pneumonia. It also causes otitis media, bacteremia, meningitis, peritonitis, and sinusitis.