What is the age limit for the 9-valent vaccine?
Nov 10, 2024
Source: Cainiu Health
Dr. Zhang Lu
Introduction
Under normal circumstances, the age limit for receiving the 9-valent HPV vaccine is typically 9 to 45 years old. This range may vary by region, depending on local healthcare policies and vaccine availability. The 9-valent HPV vaccine can prevent HPV infection, thereby reducing the incidence of diseases such as cervical cancer. Early vaccination is more effective in preventing HPV infection and related diseases.
Generally, the age limit for receiving the 9-valent HPV vaccine is typically between 9 and 45 years old. This range may vary depending on regional factors, local healthcare policies, and vaccine availability. Detailed explanations are as follows:
The 9-valent HPV vaccine helps prevent HPV infection and thereby reduces the incidence of diseases such as cervical cancer. It covers a broad range of HPV types, including HPV 6, 11, 16, 18, 31, 33, 45, 52, and 58. Early vaccination is more effective in preventing HPV infection and related diseases, especially for HPV types that a person has not yet encountered.
The World Health Organization (WHO) recommends girls aged 9–14 as the primary target group for vaccination because this age group achieves the best preventive effect from the vaccine. As age increases, the risk of HPV infection decreases, and the immune response generated by the vaccine in older women may be weaker compared to younger women. Therefore, from a cost-effectiveness perspective, some countries and regions have set an upper age limit for vaccination, generally requiring the recipient to be under 45 years old.
However, the 9-valent HPV vaccine does not completely eliminate the possibility of developing cervical cancer. Therefore, even after receiving the vaccine, regular cervical cancer screening is still necessary to ensure early detection and timely treatment of cervical cancer.
