Children from the poorest households in Nigeria are less likely to be immunized than those from wealthier households

In a Southwest state of Nigeria, children in the poorest category (quintile) of households were 14 times more likely to be partially immunized or not immunized, and those in the next poorest category were eight times more likely to be partially immunized or not immunized than children in the wealthiest group, after adjusting for factors such as education, religion, and ethnicity.

Educating women can help increase infant immunization rates in Kenya

Data from the Kenya Demographic and Health Survey show that women with a primary school education were 2 to 5 times more likely to have their infants vaccinated (depending on the vaccine) and women with a secondary school education were 2.5 to 9 times more likely to have their infants vaccinated than mothers with less than a primary education or no education [after adjusting for wealth, age, religion and other variables].

PCV-10 vaccine reduced rates of pneumococcal pneumonia in adults in Kenya, including those with HIV

The introduction of PCV-10, along with a “catch-up” campaign for 1-4 year olds, led to dramatic reductions in the rates of pneumococcal pneumonia in adults (≥18 years old) in a rural area of Kenya with high rates of both adult pneumococcal pneumonia and HIV. Over five years following the vaccine introduction, the incidence rates among adults were 47-94% lower each year than in the pre-vaccine period, with similar declines for HIV-infected and HIV-uninfected adults.

Even in hard-to-reach areas measles vaccination is cost-effective and beneficial for public health

An outreach strategy in Kenya to vaccinate children against measles in hard-to-reach areas (e.g., beyond 5 km from a vaccination post) would be highly cost-effective, despite the higher cost per child to reach these children. The estimated cost per DALY averted ranged from US$122 (if 50% of these children receive the first dose and one-half of them the second dose) to US$274 (if 100% receive the first dose) — considerably less than the country’s GDP per capita of US$1,865 used as the threshold of cost-effectiveness.

Efforts to eradicate polio have also led to improved access to other vaccines

The expertise and assets gained through efforts to eradicate polio at least partially explain the improvement between 2013 and 2015 in vaccination coverage of DPT3 in six out of ten “focus” countries of the Polio Eradication Endgame strategic plan. This includes substantial increases in vaccination rates in India, Nigeria, and Ethiopia, which, combined, reduced the number of children not fully vaccinated with DPT by 2 million in 2 years.

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