Epidemiology of intussusception before and after rotavirus vaccine introduction in Fiji.

In 2012, Fiji introduced rotavirus vaccine (Rotarix, GSK) into the national immunisation schedule. We describe the intussusception epidemiology prior to rotavirus vaccine, temporal association of intussusception cases to administration of rotavirus vaccine, and estimate the additional number of intussusception cases that may be associated with rotavirus vaccine. A retrospective review of intussusception cases for children aged <24 months old was undertaken between January 2007 and October 2012 pre-vaccine. All admissions and deaths with a discharge diagnosis of intussusception, bowel obstruction, paralytic ileus, or intussusception ICD10-AM codes were extracted from national databases and hospital records. Nationwide active intussusception surveillance was established for three years post-vaccine (2013-2015). There were 24 definite intussusception cases in the pre-rotavirus vaccine period, 96% were confirmed by surgery. The median age was 6.5 months. The incidence rate was 22.2 (95% CI: 13.9-33.7) per 100,000 infants. There were no deaths. Active surveillance identified 25 definite intussusception cases, 96% of which were among children who were age-eligible for rotavirus vaccine. None were potentially vaccine related. We estimated one to five additional  cases of intussusception every five years. The incidence of intussusception pre-rotavirus vaccine in Fiji is low. Intussusception associated with rotavirus vaccine is likely a rare event in Fiji.

The cost of outpatient pneumonia in children <5 years of age in Fiji.

OBJECTIVES: Pneumonia is the most common reason for visiting an outpatient facility among children <5 years old in Fiji. The objective of this study is to describe for the first time the costs associated with an episode of outpatient pneumonia in Fiji, in terms of cost both to the government health sector and to the household. METHODS: Costs were estimated for 400 clinically diagnosed pneumonia cases from two outpatient facilities, one in the capital, Suva, and one in a peri-urban and rural area, Nausori. Household expenses relating to transport costs, treatment costs and indirect costs were determined primarily through structured interview with the caregiver. Unit costs were collected from a variety of sources. Patient-specific costs were summarised as average costs per facility. RESULTS: The overall average societal cost associated with an episode of outpatient pneumonia was $18.98, ranging from $14.33 in Nausori to $23.67 in Suva. Household expenses represent a significant proportion of the societal cost (29% in Nausori and 45% in Suva), with transport costs the most important household cost item. Health sector expenses were dominated by personnel costs at both sites. Both the average total household expenses and the average total health sector expenses were significantly greater in Suva than Nausori. CONCLUSIONS: A single episode of outpatient pneumonia represents a significant cost both to the government health sector and to affected households. Given the high incidence of this disease in Fiji, this places a considerable burden on society.