Statistical and spatial analysis for soil heavy metals over the Murray-Darling river basin in Australia.

Heavy metals (HMs) are a vital elements for investigating the pollutant level of sediments and water bodies. The Murray-Darling river basin area located in Australia is experiencing severe damage to increased crop productivity, loss of soil fertility, and pollution levels within the vicinity of the river system. This basin is the most effective primary production area in Australia where agricultural productivity is increased the gross domastic product in the entire mainland. In this study, HMs contaminations are examined for eight study sites selected for the Murray-Darling river basin where the inverse Distance Weighting interpolation method is used to identify the distribution of HMs. To pursue this, four different pollution indices namely the Geo-accumulation index (Igeo), Contamination factor (CF), Pollution load index (PLI), single-factor pollution index (SPLI), and the heavy metal pollution index (HPI) are computed. Following this, the Pearson correlation matrix is used to identify the relationships among the two HM parameters. The results indicate that the conductivity and N (%) are relatively high in respect to using Igeo and PLI indexes for study sites 4, 6, and 7 with 2.93, 3.20, and 1.38, respectively. The average HPI is 216.9071 that also indicates higher level pollution in the Murray-Darling river basin and the highest HPI value is noted in sample site 1 (353.5817). The study also shows that the levels of Co, P, Conductivity, Al, and Mn are mostly affected by HMs and that these indices indicate the maximum HM pollution level in the Murray-Darling river basin. Finally, the results show that the high HM contamination level appears to influence human health and local environmental conditions.

Challenges of Microvillus Inclusion Disease in the NICU.

Mutations in the myosin 5ß, syntaxin-binding protein 2, and syntaxin 3 genes lead to microvillus inclusion disease (MVID), an autosomal recessive congenital enteropathy. This rare disease is characterized by lack of microvilli on the surface of enterocytes in the small intestine, the presence of pathognomonic intracellular microvillus inclusions, and vesicular bodies within these enterocytes. This pathology leads to the characteristic intractable, life-threatening, watery diarrhea. In the more common early-onset form, affected patients present in the first few days after birth, whereas in the late-onset form, clinical manifestations appear at approximately 2 to 3 months of age. Genetic testing can confirm the diagnosis, but the infant's medical history, clinical presentation, and small intestinal biopsy results are strongly suggestive of the diagnosis. The prevalence of MVID is thought to be higher in countries with a high degree of consanguinity. Patients with MVID cannot tolerate feedings and require continuous total parenteral nutrition. Mortality is extremely high in the early-onset type with reports of survival in patients treated with small intestinal transplantation. Medical counseling for parents of infants with MVID needs to reflect our current understanding of the various genetic forms of this disease, the feasible management, and anticipated outcomes.

Epidemiological and clinical aspects of neonatal tetanus from a tertiary care hospital.

BACKGROUND AND OBJECTIVES: To study the epidemiology, clinical presentation and outcome of all patients diagnosed with neonatal tetanus and to provide a recommendation for maternal and neonatal tetanus elimination. DESIGN AND SETTING: Retrospective study of all cases of neonatal tetanus admitted from 1991 to 2013.Neonatal intensive care unit, King Fahad Central Hospital, Jazan, Saudi Arabia. RESULTS: Thirty patients were diagnosed with neonatal tetanus over 22 years. Eighteen (60%) of the patients were born to Saudi mothers, and 12 (40%) were born to non-Saudi mothers. Twenty-seven (90%) deliveries occurred at home. Most of the mothers lived in the mountainous zone of the region. Two (10%) of the mothers had only a single dose of the tetanus toxoid; the status of the remaining pregnant women was unknown or unimmunized before or during conception. In 18 of the 30 patients (60%), the umbilical cord was severed using household knife, razor blade or plain scissors. Most of the patients presented with muscle spasms (96.7%), refusal to eat and abnormal posture. All of the patients were intubated and receiving mechanical ventilation. Six (20%) of the patients died. CONCLUSION: It is essential to begin campaigns or integrate complete maternal tetanus toxoid immunization at primary health centers (PHC) during antenatal care. Immunization needs to be arranged so pregnant women can be educated regarding the importance of ANC and the risks of unhygienic home delivery, and immunization should be addressed with adequate information. Pregnant women and those of childbearing age in mountainous areas should be the first targets for these activities.

Vertical transmission of fatal Rift Valley fever in a newborn.

Rift Valley Fever (RVF) is a viral disease transmitted to humans by mosquito bite and contact with animals or their infected tissues. Other modes of transmission include aerosol inhalation and possibly ingestion of raw milk from infected animals. We present a 5-day-old neonate with fatal RVF. Onset of the infant's illness on the 2nd day of life combined with positive RVF-IgM and serological evidence of maternal disease supports vertical transmission.

Epidemic Rift Valley fever in Saudi Arabia: a clinical study of severe illness in humans.

We describe the clinical patterns and case-fatality rate associated with severe Rift Valley fever (RVF) in patients who were admitted to the Gizan regional referral hospital during an outbreak of RVF in Saudi Arabia from September through November 2000. A total of 165 consecutive patients (136 men and 29 women) were prospectively studied; all were identified according to a strict case definition, were confirmed to have RVF by serologic testing, and were treated according to a predetermined protocol. The major clinical characteristics of RVF included a high frequency of hepatocellular failure in 124 patients (75.2%), acute renal failure in 68 patients (41.2%), and hemorrhagic manifestations in 32 patients (19.4%). Sixteen patients had retinitis and 7 patients had meningoencephalitis as late complications in the course of the disease. A total of 56 patients (33.9%) died. Hepatorenal failure, shock, and severe anemia were major factors associated with patient death.