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Issue

Vol 123 No 1322: 10 September 2010

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Issue Summary

SUMMARY

Human myiasis in New Zealand: imported and indigenously-acquired cases: the species of concern and clinical aspects

Jos 00e9 G B Derraik, Allen C G Heath, Marius Rademaker

Myiasis is the infestation of live human and vertebrate animals with fly larvae (maggots). Reports of myiasis in humans in New Zealand are somewhat rare, and little attention has been paid to this issue in the local medical literature. More than 20 fly species that are present in New Zealand have been associated with cases of human myiasis overseas. Here we review the relatively few cases of myiasis either acquired in New Zealand or imported into this country on returning travellers. As many medical practitioners are unaware of myiasis or encounter it rarely, we provide a brief discussion of the clinical features and treatment.

SUMMARY

Classification of ‘healthier’ and ‘less healthy’ supermarket foods by two Australasian nutrient profiling models

Helen Eyles, Delvina Gorton, Cliona Ni Mhurchu

Nutrient profiling is the process of categorising or ranking foods relative to one another according to their nutrient profile/contents. The aim of this paper was to determine whether a modified version of the Heart Foundation Tick nutrient profiling model appropriately classifies supermarket foods as healthier. Healthier products were used for promotion in a supermarket study. The modified Heart Foundation Tick nutrient profiling model was found to categorise supermarket products in a similar way to another widely used (modified) nutrient profiling model. Both nutrient profiling models were found to appropriately distinguish between healthier and less healthy foods. Therefore, the modified Heart Foundation Tick model appropriately identified healthier foods for use in the supermarket study. In addition, both nutrient profiling models have the ability to help people make better food choices.

SUMMARY

Prevalence of sexually transmitted infections in men who have sex with men presenting to Auckland Sexual Health Service

Sunita Azariah, Nicky Perkins

HIV and infectious syphilis incidence has steadily been increasing in New Zealand in recent years and research has indicated that men who have sex with men (MSM) are at most risk of acquiring these sexually transmitted infections(STIs). This study is the most recent published research comparing diagnosis of STIs and possible risk factors in men who have sex with men attending a public sexual health service in NZ. STIs including HIV were diagnosed in men who reported high levels of consistent condom use confirming that other modes of transmission other than anal sex are implicated and that STI screening should be offered to all sexually active MSM even if they report consistent condom use. Although most men reported reasonable levels of condom use, a significant minority reported rarely or never using condoms for anal sex and many men were engaging in concurrent relationships with multiple sexual partners and these factors are known to enhance STI transmission. 65% of the sample had used the internet for meeting sex partners and this offers potential in novel health promotion interventions at reducing STI and HIV acquisition in MSM. Better STI surveillance in New Zealand is required in order to improve our knowledge of STI trends in particular risk populations.

SUMMARY

An outbreak of Salmonella typhimurium phage type 1 associated with watermelon in Gisborne, January 2009

Lisa McCallum, Michelle Torok, Muriel Dufour, Alan Hall, Geoff Cramp

This paper describes a case control study of an outbreak of Salmonella typhimurium phage type 1 that was associated with watermelon in Gisborne in January 2009. Epidemiological and physical evidence suggested it may have been due to contaminated waste from birds, animals and/or humans; lack of temperature control may have also contributed. The authors suggest that melon growers keep fruit free from potential Salmonella-contaminated wastes and to chlorine wash watermelon prior to sale. Furthermore, cut watermelon should be kept chilled prior to sale.

ALL ARTICLES
SUMMARY

Clare Matheson protests too much

Valerie Smith

Atypical gastric ulcer with characteristic eschar appearance

Mohit Girotra, Sudhir K Dutta, Jeffrey Schwartz

Medical image. Delayed puberty—an occult systemic cause

Rashmi S Manjunatha, George Varughese, Cordelia Phelan, Richard N Clayton

A particular relationship: part 2

MAH (Tony) Baird

Anti-NMDA-receptor autoimmune encephalitis without neoplasm: a rare condition?

Mark Schmiedeskamp, Pietro Cariga, Annemarei Ranta

The doctor’s dilemma

Linda Bryder

Driving disease emergence: will land-use changes beat climate change to the punch?

David Slaney, Jos 00e9 G B Derraik, Philip Weinstein

Human myiasis in New Zealand: imported and indigenously-acquired cases: the species of concern and clinical aspects

Jos 00e9 G B Derraik, Allen C G Heath, Marius Rademaker

Medical image. Kidney solitaire: pearls to share

Sanjay Bandyopadhyay, Manish Saha, Pranab Kumar Maity

Land-use change and emerging public health risks in New Zealand: assessing Giardia risks

Cynthia L Winkworth

A farsighted energy strategy would benefit health in New Zealand

Nick Wilson, Ralph Chapman, Doug Clover, Philippa Howden-Chapman

Derek Alexander Larnder

Clare Matheson’s inaccurate reporting

Ron Trubuhovich

Response to letters by Paul and Bunkle

Derek A Dow

Defendants of the Cartwright Inquiry are unable to provide a description of ‘adequate care’ for cervical carcinoma in situ

Iain Chalmers

Classification of ‘healthier’ and ‘less healthy’ supermarket foods by two Australasian nutrient profiling models

Helen Eyles, Delvina Gorton, Cliona Ni Mhurchu

Prevalence of sexually transmitted infections in men who have sex with men presenting to Auckland Sexual Health Service

Sunita Azariah, Nicky Perkins

An outbreak of Salmonella typhimurium phage type 1 associated with watermelon in Gisborne, January 2009

Lisa McCallum, Michelle Torok, Muriel Dufour, Alan Hall, Geoff Cramp

The Acid Sulphur Waters of Rotorua

SUMMARY

Human myiasis in New Zealand: imported and indigenously-acquired cases: the species of concern and clinical aspects

Jos 00e9 G B Derraik, Allen C G Heath, Marius Rademaker

Myiasis is the infestation of live human and vertebrate animals with fly larvae (maggots). Reports of myiasis in humans in New Zealand are somewhat rare, and little attention has been paid to this issue in the local medical literature. More than 20 fly species that are present in New Zealand have been associated with cases of human myiasis overseas. Here we review the relatively few cases of myiasis either acquired in New Zealand or imported into this country on returning travellers. As many medical practitioners are unaware of myiasis or encounter it rarely, we provide a brief discussion of the clinical features and treatment.

SUMMARY

Classification of ‘healthier’ and ‘less healthy’ supermarket foods by two Australasian nutrient profiling models

Helen Eyles, Delvina Gorton, Cliona Ni Mhurchu

Nutrient profiling is the process of categorising or ranking foods relative to one another according to their nutrient profile/contents. The aim of this paper was to determine whether a modified version of the Heart Foundation Tick nutrient profiling model appropriately classifies supermarket foods as healthier. Healthier products were used for promotion in a supermarket study. The modified Heart Foundation Tick nutrient profiling model was found to categorise supermarket products in a similar way to another widely used (modified) nutrient profiling model. Both nutrient profiling models were found to appropriately distinguish between healthier and less healthy foods. Therefore, the modified Heart Foundation Tick model appropriately identified healthier foods for use in the supermarket study. In addition, both nutrient profiling models have the ability to help people make better food choices.

SUMMARY

Prevalence of sexually transmitted infections in men who have sex with men presenting to Auckland Sexual Health Service

Sunita Azariah, Nicky Perkins

HIV and infectious syphilis incidence has steadily been increasing in New Zealand in recent years and research has indicated that men who have sex with men (MSM) are at most risk of acquiring these sexually transmitted infections(STIs). This study is the most recent published research comparing diagnosis of STIs and possible risk factors in men who have sex with men attending a public sexual health service in NZ. STIs including HIV were diagnosed in men who reported high levels of consistent condom use confirming that other modes of transmission other than anal sex are implicated and that STI screening should be offered to all sexually active MSM even if they report consistent condom use. Although most men reported reasonable levels of condom use, a significant minority reported rarely or never using condoms for anal sex and many men were engaging in concurrent relationships with multiple sexual partners and these factors are known to enhance STI transmission. 65% of the sample had used the internet for meeting sex partners and this offers potential in novel health promotion interventions at reducing STI and HIV acquisition in MSM. Better STI surveillance in New Zealand is required in order to improve our knowledge of STI trends in particular risk populations.

SUMMARY

An outbreak of Salmonella typhimurium phage type 1 associated with watermelon in Gisborne, January 2009

Lisa McCallum, Michelle Torok, Muriel Dufour, Alan Hall, Geoff Cramp

This paper describes a case control study of an outbreak of Salmonella typhimurium phage type 1 that was associated with watermelon in Gisborne in January 2009. Epidemiological and physical evidence suggested it may have been due to contaminated waste from birds, animals and/or humans; lack of temperature control may have also contributed. The authors suggest that melon growers keep fruit free from potential Salmonella-contaminated wastes and to chlorine wash watermelon prior to sale. Furthermore, cut watermelon should be kept chilled prior to sale.

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