Background: Introduction of inactivated polio vaccine is imminent and may encounter the challenges that face new vaccines especially vaccine hesitancy. The study evaluated factors that may contribute to hesitancy towards IPV. Methods: Questionnaire adapted from the model developed by the Strategic Advisory Group of Experts Working Group (SAGE WG) was used to assess the factors among 408 parents...

The challenges faced in delivering lifesaving vaccines to the targeted beneficiaries need to be addressed from the existing knowledge and learning from the past. This review documents the history of vaccines and vaccination in India with an objective to derive lessons for policy direction to expand the benefits of vaccination in the country. A brief historical perspective on smallpox disease an...

In 1988, the World Health Assembly endorsed the goal of eradicating poliomyelitis worldwide. At the time, the estimated annual number of new cases of paralysis was 350,000, and poliomyelitis was considered to be endemic in 125 countries.1 In the 25 years since then, the incidence of poliomyelitis has been reduced by more than 99%, and only three countries — Pakistan, Nigeria, and Afghanistan — ...

In 2000, the island of Hispaniola, home to Haiti and the Dominican Republic, was the first place where the existence of circulating vaccine derived poliovirus (cVDPV) was demonstrated [1]. As a live product, oral polio vaccine (OPV), once excreted, could enter the environment, reassort with other enteroviruses, and produce cVDPV [2]. After the investigation of that outbreak, the first of a doze...

The effectiveness of maternal immunization in preventing infant pertussis was first demonstrated in England, 1 year after the program using diphtheria-tetanus-5-component acellular pertussis-inactivated polio vaccine (dT5aP-IPV) was introduced in 2012. Vaccine effectiveness against laboratory-confirmed pertussis has been sustained >90% in the 3 years following its introduction, despite changing...

stability studies play a critical role in assuring product quality at all points in the vaccine life cycle. these studies used to determine vaccine expiry date and vaccine efficacy. accelerated stability and long term stability study performed for three batches of trivalent oral poliomyelitis vaccine (opv) and three batches of monovalent opv (type1) manufactured by razi institute. after samplin...

INTRODUCTION Vaccinations in school-aged children are required by state and local law to maintain high vaccination coverage rates, as well as low rates of vaccine-preventable diseases. Diphtheria, tetanus, and pertussis are childhood diseases that can be life threatening; poliomyelitis, another childhood disease, can be disabling. In turn, vaccinations were developed to provide protection again...

In 1988, the World Health Assembly resolved to eradicate poliomyelitis worldwide. One of the main tools used in polio eradication efforts has been live, attenuated oral poliovirus vaccine (OPV), an inexpensive vaccine easily administered by trained volunteers. OPV might require several doses to induce immunity, but then it provides long-term protection against paralytic disease through durable ...