The path to cervical cancer prevention

Pakistan’s HPV vaccine campaign 

Pakistan has begun a public health intervention that clinical medicine has long anticipated and public health experts have urged for decades. The government has launched a large-scale human papillomavirus vaccination campaign aimed at girls aged nine to 14 across the country with the explicit objective of preventing cervical cancer.

This is not a cosmetic addition to the national immunization schedule. It is primary prevention against a disease that is largely preventable when vaccination and screening are implemented at scale. The first phase targets roughly 13 million girls and will be delivered through schools, community outreach and fixed health centres, with the goal of integrating the vaccine into routine immunizations and achieving very high coverage in the coming years. This campaign is backed by global immunization partners and the vaccine being used is WHO prequalified, all designed to make safe, effective protection widely available and free at point of care.

The clinical rationale is straightforward and compelling. Persistent infection with high risk HPV types is the dominant cause of cervical cancer. Vaccines that prevent infection with those high risk types substantially lower future rates of cervical precancer and cancer. Large trials, observational follow up, and real world programme data consistently show that HPV vaccination given in early adolescence prevents the chronic infections that lead to most cervical cancers later in life.

Global evidence supports the strategy of vaccinating young adolescents because immune responses are strongest at younger ages and population impact is maximized when the vaccine is administered before exposure to HPV. The World Health Organization has recommended HPV vaccination as a central pillar of cervical cancer elimination strategies, alongside screening and timely treatment.

The disease burden in Pakistan puts urgency behind that recommendation. National and institutional estimates converge on a stark figure: roughly 5000 new cervical cancer diagnoses a year and about 3000 deaths annually. Those numbers make cervical cancer one of the most important malignancies affecting Pakistani women, particularly because many cases are diagnosed late and access to radiotherapy and specialist care is limited. The high mortality to incidence ratio reflects low screening coverage, limited diagnostic capacity, and many women presenting with advanced disease that is difficult and costly to treat. Preventing infection now through a properly run vaccination campaign will reduce those future deaths and reduce pressure on a health system that already struggles with cancer care access.

Scientific questions about vaccine safety and effectiveness drive many conversations in clinical and community settings. Fortunately, the evidence base is robust. Multiple vaccine products are WHO listed and have long safety surveillance: decades of post licensure studies and active monitoring systems show no causal link between HPV vaccination and long term infertility or serious systemic disease.

The commonly used vaccines protect against the virus types that cause the majority of cervical cancers and their real world impact has already been seen in countries with high coverage where precancerous lesions and infections have declined substantially. For the vaccine product selected in this rollout, judged suitable for low cost large scale use, WHO prequalification followed an independent assessment of manufacturing, safety and efficacy data. That standard is the same applied to vaccines used worldwide.

Despite clear efficacy and safety data, the campaign has met resistance in some communities. That resistance is predictable given Pakistan’s recent vaccine history and the social environment where rumours spread quickly on social platforms. Decades of immunization work in Pakistan have achieved remarkable gains, but they have also encountered repeated episodes of mistrust.

The choice is not between tradition and modern medicine. The choice is whether Pakistan will deploy a safe, effective, globally recommended tool to protect its girls and then build the services to ensure that protection translates into lives saved. The public health case is decisive. The program’s success will rest on competence, clarity and the sustained work of health workers who are already trusted in their communities.

A single high profile breach of trust in 2011, when intelligence actors used a vaccination ruse in a counterterrorism operation, was seized upon by militants and anti-vaccine actors to discredit public health campaigns for years. That episode amplified existing suspicion and materially reduced trust in door to door vaccination in some districts.

More recently the flood of social media misinformation about vaccines including coded claims about fertility effects, foreign plots, or hidden ingredients has made vaccine hesitancy a complex social phenomenon not solved by simply publishing scientific reassurances. These are not abstract problems; they reduce uptake and create real barriers to the very prevention that will lower future cancer deaths.

There are additional, more prosaic reasons why communities hesitate. Low awareness of cervical cancer itself is common across demographic groups. Studies, even among urban and hospital attending populations, show that a majority of women may have heard of cervical cancer but only a minority understand screening or vaccination as prevention.

Many parents have never seen HPV listed on a childhood immunization card and do not have a clear idea of how sexually transmitted viruses relate to cancer decades later. Cultural sensitivity about adolescent vaccination for a sexually transmitted infection, concerns about consent and privacy, and practical issues such as timing, transport and female vaccinator availability all influence whether a family will accept the shot. In short, scientific evidence is necessary to justify the programme but it is not sufficient to ensure acceptance in every community.

Explaining the real risks and benefits in concrete terms makes a difference. The vaccines protect chiefly against HPV types that cause about 70 percent of cervical cancers worldwide and newer formulations widen that protection further. Even one dose provides strong immunity in young adolescents according to WHO guidance, which simplifies logistics and reduces barriers to completion.

The most common immediate side effects are mild and transient: injection site pain, low grade fever, or fainting episodes which are manageable with routine safety protocols. Serious adverse effects are extremely rare, and no credible evidence links the vaccine to infertility. Those facts matter to clinicians speaking with parents and to public information campaigns that must be concise and trust building.

Programme design choices in Pakistan reflect these realities. First, vaccinators are predominantly female which is an intentional adaptation to cultural norms and an effective way to make families more comfortable accessing services. Second, partners like WHO, Gavi, Unicef and technical agencies are providing not just doses but operational support including social mobilisation, supply chain, training and safety monitoring.

Third, outreach will include schools and special mobile teams for out of school girls to reduce inequity. Those practical choices increase the chance of reaching more girls and of building acceptance by demonstrating respectful delivery rather than imposing interventions from outside.

No vaccination programme stands alone.

To reduce future cervical cancer mortality significantly, vaccination must be combined with realistic expansion of screening and treatment. Screening programs detect precancerous lesions that can be treated before they progress. In Pakistan many women currently lack access to timely screening and radiotherapy when cancer is diagnosed. Policymakers need to commit resources now for screening rollout, laboratory capacity and referral pathways so that gains from vaccination are not blunted by failures elsewhere in the care continuum. This is a long term investment in population health with predictable returns in lives saved, disability avoided and health system costs reduced.

Addressing fear requires an honest and sustained communication strategy that combines clinical facts, culturally appropriate dialogue and community engagement. Health workers and survivors who can share real life testimony are effective messengers. Religious leaders and schoolteachers often carry outsized credibility; when well briefed they can dismantle myths effectively.

Social media cannot simply be ignored; authorities must actively correct popular falsehoods and provide clear channels for questions. Campaigns that combine education about how the vaccine works, who benefits, logistical details about where and when vaccination will occur and assurances about safety monitoring have best chance of success. Experience in other countries shows that when community engagement is genuine and ongoing, hesitant parents often accept vaccination after questions are answered respectfully.

Operationally there are several technical points clinicians and program managers should watch closely. Cold chain integrity, correct documentation, robust adverse event following immunization systems and transparent reporting strengthen public confidence. Clear referral pathways for girls with adverse events, even if unrelated to vaccination, build trust in the system. Surveillance should include monitoring uptake across socioeconomic gradients to ensure the most vulnerable populations are reached. Where supply permits, catch up cohorts and later inclusion of boys can be considered, but the immediate priority is rapid, equitable coverage of the core target group of young girls.

Success will be measured in both health metrics and in the quality of community relationships. Vaccination coverage rates, reductions in vaccine preventable HPV infection and, years later, declining rates of cervical pre-cancer and cancer are the final public health outcomes. In the short term, however, success must also mean minimal missed opportunities, transparent handling of adverse events, and a sustained reduction in misinformation. Achieving 90 percent coverage across a large and diverse population is an ambitious target but an achievable one if the campaign continues to pair technical excellence with culturally sensitive, empathetic outreach.

The introduction of HPV vaccination in Pakistan is a moment that combines science, policy and social reality. It is a clear opportunity to prevent thousands of deaths and to reduce a cancer that disproportionately affects women in low resource settings. It will not be easy and no single communication line will fix deep rooted fears overnight. But an evidence based programme that is transparently run, that links vaccination to investments in screening and treatment and that listens to community concerns will change the epidemiology of cervical cancer in Pakistan over a generation.

The choice is not between tradition and modern medicine. The choice is whether Pakistan will deploy a safe, effective, globally recommended tool to protect its girls and then build the services to ensure that protection translates into lives saved. The public health case is decisive. The program’s success will rest on competence, clarity and the sustained work of health workers who are already trusted in their communities.

Oshaz Fatima
Oshaz Fatima
Oshaz Fatima is an academic researcher and youth leader with more than six years of active volunteering experience. She is currently working as a freelance writer

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Must Read

SHC suspends KU notification cancelling Justice Jahangiri’s law degree

KARACHI: The Sindh High Court (SHC) on Friday suspended a notification issued by the University of Karachi (KU) that had cancelled the law degree...