Sustained and coordinated vaccination efforts have brought polio eradication within reach. Anticipating the eradication of wild poliovirus (WPV) and the subsequent challenges in preventing its re-emergence, we look to the past to identify why polio rose to epidemic levels in the mid-20th century, and how WPV persisted over large geographic scales. We analyzed an extensive epidemiological datase...

The polio eradication endgame aims to bring transmission of all polioviruses to a halt. To achieve this aim, it is essential to block viral replication in individuals via induction of a robust mucosal immune response. Although it has long been recognized that inactivated poliovirus vaccine (IPV) is incapable of inducing a strong mucosal response on its own, it has recently become clear that IPV...

Polio eradication requires the removal of all polioviruses from human populations, whether wild poliovirus or those emanating from the oral poliovirus vaccine (OPV). The Polio Eradication & Endgame Strategic Plan 2013-2018 provides a framework for interruption of wild poliovirus transmission in remaining endemic foci and lays out a plan for the new polio end game, which includes the withdrawal ...

Abstract Introduction Polio, which is caused by poliovirus, a contagious, potentially crippling, and deadly disease. Pakistan one of the countries in polio still endemic 21st century. In 2019, 146 cases were reported across country with some resulting deaths. Following spread rumors insinuating that children falling sick after receiving an anti-polio vaccine, mob attacked set fire to small hosp...

Poliomyelitis is one of few diseases that can be eradicated. The virus cannot survive outside the body and effective vaccine is available to protect children and stop transmission. Today, there are 3 million children each year saved by the oral polio vaccine (OPV) and globally the reported cases have declined from 50,000 to 7,000 in 1999. At present, 20 countries may remain at risk of continued...

While seven years have passed since 2000, the target set for the eradication of polio, success remains elusive. In 2006, despite coordinated international efforts, there was no major breakthrough in containing the polio virus, which persists in a few pockets in the four countries in which it is endemic. The polio eradication programme faces new hurdles such as importation, re-emergence and fail...

In this paper we consider the main steps in the process of manufacture of oral polio vaccine and assess the probable clearance factor for HIV retrovirus at each step. We conclude that the processes employed would have eliminated retrovirus contamination for all practical purposes.

Routine and mass administration of oral polio vaccine (OPV) since 1961 has prevented many millions of cases of paralytic poliomyelitis. The public health value of this inexpensive and easily administered product has been extraordinary. Progress of the Global Polio Eradication Initiative has further defined the value of OPV as well as its risk through vaccine-associated paralytic poliomyelitis (...

With increase in the number of polio cases, Nigeria serves as the primary threat to a polio free world. The “good” the bad” and “the ugly” aspects of polio vaccination in Nigeria is discussed. In the ‘good’ aspect the number of wild poliovirus cases declined by over 90%, cVDPV 2 cases declined by 82%. Similarly, genetic clusters of both wild poliovirus type 1 and type 3 have reduced form 18 and...

BACKGROUND The polio eradication initiative had major setbacks in 2003 and 2007 due to media campaigns in which renowned scholars and Islamic clerics criticized polio vaccines. The World Health Organization (WHO) partnered with journalists in 2007 to form the Journalists Initiatives on Immunisation Against Polio (JAP), to develop communication initiatives aimed at highlighting polio eradication...