How did the number of wild poliovirus cases change in Pakistan recently?
Pakistan is one of the few countries where wild poliovirus transmission has not been stopped. Reports show that the number of cases fluctuated over recent years, with a notable rise in 2018 and 2019. A separate report tracks how the number of cases changed during the period from early 2022 to mid-2024.
What the research says
Between January 2018 and September 2019, the number of wild poliovirus type 1 cases in Pakistan increased compared to the previous four years 9. In 2018 alone, Pakistan reported 12 cases, which was a 50% increase from the eight cases reported in 2017 9. By November 2019, the total number of cases reported had reached 80, compared to only eight cases by the same time in 2018 9. This resurgence occurred despite intensive vaccination efforts in core areas like Karachi, Peshawar, and Quetta 9.
A later report specifically describes changes in the number of wild poliovirus type 1 cases in Pakistan from January 2022-June 2023 to January 2023-June 2024 4. This source tracks the progress toward eradication during the period of January 2020 to July 2021 as well 2. The data indicates that while transmission continues, the specific numbers of cases are monitored closely to assess if the virus is being eliminated from the country 24.
What to ask your doctor
- What does the latest data say about the number of wild poliovirus cases in Pakistan?
- How have vaccination efforts in Pakistan changed since the increase in cases in 2018?
- What are the current risks of wild poliovirus transmission in my region?
- Are there specific travel precautions I should take if I am going to Pakistan?
This question is drawn from common patient questions about Infectious Disease and answered using cited medical research. We do not provide individualized advice.