Battling the Misconceptions: Understanding the Ubiquitous HPV Virus
Human Papillomavirus (HPV) is a highly prevalent virus that many people may not fully understand. It is so ubiquitous that it’s estimated around 80% of individuals will come into contact with it at some point in their lifetime, often without any awareness. Developing a better comprehension of HPV is crucial, given its potential connection to various forms of cancer.
With scientists having identified more than 200 unique types of this virus, HPV stands as one of the most diverse members of the viral world. This immense variety introduces a heart of complexity. Some strains are of low risk – they either fail to produce noticeable symptoms or they cause harmless warts.
Certain strains of HPV such as HPV 1, 2, and 4 are behind the development of commonplace skin warts. Many individuals have encountered these types of warts first-hand, including the familiar verruca or plantar wart often acquired at public swimming facilities.
Meanwhile, strains like HPV 6 and 11 manifest as genital warts — small outgrowths seen on or around the genitals and anus. Several treatment options exist ranging from the application of topical creams, surgical excision, or cryoablation. However, it’s essential to note that while these interventions may eliminate the visible warts, they do not eradicate the virus itself, leaving the risk for virus transmission to sexual partners until it’s cleared by the body’s immunity.
Certain HPV strains, notably HPV 16 and 18, have been specifically associated with cancer. These fall within around 14 strains classified as high-risk due to their ability to infiltrate human cells and inflict damage to their DNA. The resulting disruption to the cells’ standard growth and division control can, in turn, lead to cancer development. Recurring or long-standing infection with these harmful strains intensifies the associated cancer risk.
Lifestyle factors can also impact the risk, with habits such as smoking further threatening the body’s ability to eliminate the virus. Considering the wide spectrum of HPV manifestations ranging from tolerable skin warts to strains with known cancerous links, misconceptions and lack of clarity can easily arise.
Dispelling such misconceptions starts with understanding a few essential points about the virus. HPV’s association extends beyond just cervical cancer. Besides cervical cancer, HPV also has known links to cancers of the vulva, vagina, anus, penis, mouth, and throat. Additionally, emerging research hints at a possible contribution of some HPV types to the onset of skin cancer.
Due to this vast scope of cancer risk, the widely accessible HPV vaccine is recommended for both genders. The vaccine’s capacity to prevent HPV infection at population levels is undeniably meritorious, considering transmission may occur between both heterosexual and homosexual partners, even without visible symptoms or genital warts.
It’s possible to transmit HPV via skin contact before immune clearance, even before the appearance of genital warts or after their treatment. For this reason, it is advised to use condoms for at least three months following the resolution of visible warts.
Furthermore, the transmission of HPV isn’t limited to vaginal or anal sex. There is potential to develop oral and throat cancers following acquisition of HPV through oral sex. In fact, an escalating trend in the incidence of mouth and throat cancers is being observed worldwide. Oral sex is now recognized as the predominant behavioral risk factor.
Research has also indicated the presence of HPV on sex toys, further expanding its potential transmission routes. Proper hygiene practices in cleaning these items, combined with refraining from shared usage, is also critical in mitigating transmission.
It should be acknowledged that the use of condoms only partially mitigates the risk of acquiring HPV as the virus can be present on non-covered skin, which means many sexually active individuals will likely encounter the virus despite practicing safe sex.
Given that current HPV vaccines primarily target the most high-risk types but are unable to cover every cancer-causing strain or treat existing HPV infections, there still exists a risk of cervical cancer not linked to HPV. Hence, women aged between 25 to 64 are still prompted to participate in cervical screening every five years, following vaccination.
Despite the wide availability of the HPV vaccine, vaccination rates have seen a decline in certain regions. Interruptions in routine vaccination schedules due to the COVID-19 pandemic and misguided beliefs about the vaccine have combined to reduce the trust in its efficacy. Improved awareness about the link between various cancers and HPV vaccination is crucial. The World Health Organization’s aim is to fully vaccinate 90% of girls by age 15 by 2030 – a goal that still has a long way to go with only about 48% of girls vaccinated at present.