A continuing high incidence of subacute sclerosing panencephalitis (SSPE) in the Eastern Highlands of Papua New Guinea.

The aims of this descriptive study were to confirm the high incidence of subacute sclerosing panencephalitis (SSPE) previously reported from Papua New Guinea (PNG) and to relate SSPE to previous measles vaccination and measles illness. From February 1997 to April 1999 we diagnosed a total of 55 patients with SSPE at Goroka Base General Hospital in Eastern Highlands Province (EHP) of PNG. The diagnosis was based on high cerebrospinal fluid and serum measles virus antibody titres with progressive neurological disorder and myoclonic jerks. Of these 55 patients 42 were from EHP, including 32 whose onset was in the 2-year period 1997-1998. The annual incidence of SSPE in EHP in these 2 years was 98 per million population under 20 years of age, the highest ever reported. This incidence was more than ten times higher than the highest incidence in the prevaccine era reported from elsewhere. The mean age of onset of SSPE was 7.7 years (range 2.8-14.8 years) and the interval between measles and the onset of SSPE, where known, had a mean of 5.9 years and a range of 2.5-11.1 years. Among the SSPE patients 19 had a documented history of measles vaccination. Eight of these 19 also had documentation of previous measles illness; of these, seven were vaccinated after the development of measles and one was vaccinated 20 days before measles illness. Two non-SSPE children received vaccination twice which was documented and subsequently developed measles which was also substantiated by documentation. Two patients with SSPE yielded amplified nucleotide sequences of measles virus that were different from any of the vaccine strains. We found no evidence to implicate measles vaccination in the development of SSPE.

Infant feeding practices in Papua New Guinea.

Concern about a possibly increasing prevalence of bottle-feeding led in 1995 to an Infant Feeding Survey of 1822 mothers attending urban health facilities. Infant feeding practices including feeding of colostrum, exclusive breastfeeding, weaning practices and bottle-feeding were assessed. This revealed that 28.8% of mothers had not given colostrum to their babies, that 43.5% of 3-month-old babies were exclusively breastfed, and that solids were introduced before 4 months of age in over half of the study population. Bottle-feeding was used by 20% of the study population. Feeding practices differed in women of Highlands and of Coastal origin. The findings emphasize the need to strengthen health education programmes which take into account the mothers' different cultural backgrounds. The issue of breast-feeding by mothers in paid employment needs to be addressed.

PIP: Recognizing the many benefits of breast-feeding, the government of Papua New Guinea (PNG) legislated to protect the practice 4 years before the introduction of the World Health Organization Code of Marketing restricting access to bottle feeding supplies. While exclusive breast-feeding for 4-6 months is recommended policy, it was noticed that many mothers introduce solids and fluids other than breast milk much earlier. In 1995, the Pediatric Society of PNG conducted a feeding survey to assess the prevalence of bottle feeding and review the effects of the imposed legislation. Infant feeding practices, including the feeding of colostrum, exclusive breast-feeding, weaning practices, and bottle feeding were assessed among 1822 mothers of children under age 2 years attending urban health facilities. 28.8% of the mothers had not given colostrum to their babies, 43.5% of 3-month old babies were exclusively breast-fed, and solids were introduced before age 4 months in more than half of the study population. 20% of the study population bottle fed. The prevalence of exclusive breast-feeding among employed Highlands women was lower than among employed Coastal women, but the difference was not statistically significant. Study findings point to the need to strengthen health education programs which take into account mothers' different cultural backgrounds. The issue of breast-feeding by mothers in paid employment also needs to be addressed.