Bordetella pertussis is a pathogen-causing whoo** cough (pertussis) in humans.
Although vaccination against the disease is effective, the bacterium is still circulating among …

Background: Traditional measurements of vaccine coverage at specific ages can mask poor
vaccine timeliness. However, optimal measurement of timing is unclear due to variations in …

Background Timely vaccination is key to prevent unnecessary childhood mortality from
vaccine-preventable diseases. Despite the substantial efforts to improve vaccination …

Objective Although vaccine coverage in infants in sub-Saharan Africa is high, this is
estimated at the age of 6–12 months. There is little information on the timely administration …

Background Vaccination has been shown to reduce mortality and morbidity due to vaccine-
preventable diseases. However, these diseases are still responsible for majority of …

Background Every year, vaccination averts about 3 million deaths from vaccine-preventable
diseases (VPDs). However, despite that immunization coverage is increasing globally, many …

Introduction Expanded programme on immunizations in resource-limited settings currently
measure vaccination coverage defined as the proportion of children aged 12-23 months that …

Introduction In 2011, two years after the introduction of 7-valent Pneumococcal conjugate
vaccine (PCV7), the Gambian immunization programme replaced PVC7 with PCV13 (13 …

Background Globally, vaccination is one of the most cost-effective interventions in promoting
child survival, preventing 2–3 million child deaths annually from vaccine-preventable …

Empiric studies exploring the timeliness of routine vaccination in low-and middle-income
countries (LMICs) have gained momentum in the last decade. Nevertheless, there is …