The epidemiology of Plasmodium falciparum and Plasmodium vivax in East Sepik Province, Papua New Guinea, pre- and post-implementation of national malaria control efforts.

BACKGROUND: In the past decade, national malaria control efforts in Papua New Guinea (PNG) have received renewed support, facilitating nationwide distribution of free long-lasting insecticidal nets (LLINs), as well as improvements in access to parasite-confirmed diagnosis and effective artemisinin-combination therapy in 2011-2012. METHODS: To study the effects of these intensified control efforts on the epidemiology and transmission of Plasmodium falciparum and Plasmodium vivax infections and investigate risk factors at the individual and household level, two cross-sectional surveys were conducted in the East Sepik Province of PNG; one in 2005, before the scale-up of national campaigns and one in late 2012-early 2013, after 2 rounds of LLIN distribution (2008 and 2011-2012). Differences between studies were investigated using Chi square (χ2), Fischer's exact tests and Student's t-test. Multivariable logistic regression models were built to investigate factors associated with infection at the individual and household level. RESULTS: The prevalence of P. falciparum and P. vivax in surveyed communities decreased from 55% (2005) to 9% (2013) and 36% to 6%, respectively. The mean multiplicity of infection (MOI) decreased from 1.8 to 1.6 for P. falciparum (p = 0.08) and from 2.2 to 1.4 for P. vivax (p < 0.001). Alongside these reductions, a shift towards a more uniform distribution of infections and illness across age groups was observed but there was greater heterogeneity across the study area and within the study villages. Microscopy positive infections and clinical cases in the household were associated with high rate infection households (> 50% of household members with Plasmodium infection). CONCLUSION: After the scale-up of malaria control interventions in PNG between 2008 and 2012, there was a substantial reduction in P. falciparum and P. vivax infection rates in the studies villages in East Sepik Province. Understanding the extent of local heterogeneity in malaria transmission and the driving factors is critical to identify and implement targeted control strategies to ensure the ongoing success of malaria control in PNG and inform the development of tools required to achieve elimination. In household-based interventions, diagnostics with a sensitivity similar to (expert) microscopy could be used to identify and target high rate households.

Intensive intravenous regime for acute severe colitis.

Acute severe exacerbation of ulcerative colitis is a potentially life threatening medical emergency. The management of acute severe ulcerative colitis depends on early recognition and prompt initiation of intensive intravenous treatment along with continuous objective monitoring for possible medical failure. The intensive regime is the accepted standard of care. This includes primarily a) intravenous corticosteroids, b) intravenous supportive management, and d) intravenous antibiotics in instances. This review discusses the timing, duration and dosage of the intensive intravenous treatment including the evidence based protocol for effective monitoring to enable timely escalation to second line therapy & colectomy.

Nonhealing vegetating plaque on the finger: tuberculosis verrucosa cutis.

Tuberculosis verrucosa cutis is an uncommon form of tuberculosis that typically presents as a chronic warty plaque. It develops in individuals with moderate to high immunity to Mycobacterium tuberculosis due to inoculation of an open wound. We present the case of a Somali man born in the United Kingdom who presented with a nonhealing ulcer on the right hand of 10 years' duration. The patient was diagnosed with tuberculosis verrucosa cutis based on clinical suspicion, which was confirmed by several investigations including strongly positive results of a Mantoux test, IFN-gamma release assay, typical histology on skin biopsy, and polymerase chain reaction (PCR) analysis positive for mycobacterial DNA. Treatment with quadruple antituberculous therapy produced rapid resolution of the ulcer. This unusual condition often is overlooked in the differential diagnosis of nonhealing ulcers, yet it has an excellent prognosis with treatment. A high index of suspicion is required.

The Situational Context of Police Sexual Violence: Data and Policy Implications.

The horrors of sexual crimes perpetrated by law enforcement officers are laid bare in this study of 669 cases of police sexual violence. Here, authors Philip Matthew Stinson, Robert W. Taylor, and John Liederbach identify three scenarios in which law enforcement officers inflict sexual violence upon their mostly-female victims: 1) "driving while female," 2) child predation, and 3) involvement in the sex worker industry. Especially sobering is the fact that, as opposed to law enforcement doing its solemn duty to report criminality on the part of fellow police officers, "citizens rather than police initiated the detection of the crimes in almost all the cases, whether the context involved child predation (94.8%), driving while female (94.7%), or the sex worker industry (90.8%)." Rather than an anomaly, sexual predation on the part of police, along with the routine cover-ups that perpetuate these crimes, appears to be just one component of the "rotten barrel" that depicts a culture of police corruption.