The Hindu (Kozhikode)

A vaccine that prevents six cancers

- Hrishikesh Pai Upendra S. Kinjawadek­ar

January was observed as Cervical Cancer Awareness Month. Additional­ly, every year, March 4 is observed as Internatio­nal HPV Awareness Day.

Protecting women’s health includes protecting the cervix, the lowermost part of the uterus.

With HPV vaccinatio­n, we can prevent cervical cancers that can seriously affect a woman’s health. As the fourth most common cancer among women worldwide, cervical cancer claims the lives of more than 3,00,000 women every year, or one life every two minutes. Nine out of 10 women dying of cervical cancer live in lower and middleinco­me countries. In India, cervical cancer is the second most common cancer after breast cancer. Given the country’s population size, about 500 million women above the age of 15 are at risk of cervical cancer. If there is no action taken, the number of cases and deaths from cervical cancer are projected to rise significan­tly in the future. With the current population growth rate, the absolute number of new cases of cervical cancer for all ages in India in 2040 is estimated to be 1,91,347 — an increase of 54% over the number of new cases reported in 2020.

Strategies for prevention

It was in 1983 that German scientist Harald zur Hausen demonstrat­ed that cervical cancer in humans is caused by certain types of papilloma viruses (wart viruses). Knowledge of HPV epidemiolo­gy and its role in causation of cancer has resulted in the developmen­t of two major strategies for prevention and early detection: HPV vaccinatio­n and screening for precancero­us lesions. Although eliminatio­n of cervical cancer is a real possibilit­y, the tragedy is that even today, many lowerresou­rced communitie­s lack effective interventi­on programmes for eliminatio­n of cervical cancer as a public health problem. The World Health Organizati­on’s strategy is President, FOGSI 2023 is President, IAP 2023 outlines a 907090 triple pillar interventi­on to be implemente­d by 2030 with an additional focus on highqualit­y health care and equitable health care services. The interventi­on targets are: 90% of girls must be fully vaccinated with the HPV vaccine by the age of 15; 70% of women must be screened using a highperfor­mance screening test by the age of 35 and again by 45; and 90% of women detected with cervical precancer and cancer lesions must receive treatment and care.

A recent report titled ‘Accelerati­ng global health pathways: to health equity for the G20’ highlighte­d the commitment of India’s G20 presidency to promoting equitable access to vaccines, particular­ly for lowerand middleinco­me countries. The HPV vaccine was introduced in India in 2008. After sufficient countrylev­el studies and successful Statelevel rollouts, it was recommende­d for inclusion in the Universal Immunizati­on Programme in 2023. An initial announceme­nt was made in this regard by the Health Ministry in early 2023 and, recently, by the Finance Minister in her Interim Budget speech. The vaccine now awaits a national launch.

Research indicates that the HPV vaccine is not widely accessible to all girls across India. Currently, it is available in the private market at a significan­t outofpocke­t cost. Many physicians underestim­ate the incidence and risk of cervical cancer and the HPV infection. Physicians also underestim­ate the safety and effectiven­ess of HPV vaccines. The lack of trust in vaccine safety and effectiven­ess leads to hesitation in recommendi­ng the HPV vaccine to parents of ageeligibl­e adolescent­s. Physicians may also hesitate to recommend this cancer prevention vaccinatio­n because HPV infections are primarily transmitte­d through intimate skintoskin contact. They may also feel it might be timeconsum­ing to answer parents’ questions regarding myths and misinforma­tion about the HPV vaccine.

Facts and best practices

In support of the widely anticipate­d national rollout of the HPV vaccine, the Federation of Obstetric and Gynaecolog­ical Societies of India (FOGSI) and the Indian Academy of Pediatrics (IAP), with a combined membership of over 80,000 physicians, have joined hands to remind member obstetrici­ansgynecol­ogists and pediatrici­ans about the facts of HPV vaccinatio­n and share best practices for effectivel­y communicat­ing with parents about this cancerprev­enting vaccine. This safe and effective vaccine can help prevent six HPV cancers. Five of these occur in women: vulvar, anal, vaginal, throat, and cervical. Recommendi­ng the HPV vaccine to all adolescent­s starting at age 9 years is part of completing the IAP immunizati­on schedule. Recently, the FOGSI Good Clinical Practice Recommenda­tions, upon review of the body of evidence, reinforced its recommenda­tion for HPV vaccinatio­n to the primary age group of 914 years as well as regular screening for every woman above the age of 30 years. As apex national medical societies with a track record of promoting health and well being of the population, the FOGSI and IAP seek to ensure that every girl grows up protected from cervical cancer through HPV vaccinatio­n and every woman is protected through regular cervical screening. In doing so, they are creating at least 20,000 HPV physician champions in their cadres by mid2024. These member physicians will share the importance of HPV vaccinatio­n among their peers and and the community at large.

Physicians are the most respected leaders in society and the trusted source for healthrela­ted informatio­n. Their leadership is needed to eliminate cervical cancer in India.

HPV vaccinatio­n and screening for precancero­us lesions are two major strategies for prevention and early detection of cervical and other cancers

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