Epidemiological trends, antifungal drug susceptibility and SQLE point mutations in etiologic species of human dermatophytosis in Al-Diwaneyah, Iraq.

Dermatophytes show a wide geographic distribution and are the main causative agents of skin fungal infections in many regions of the world. Recently, their resistance to antifungal drugs has led to an obstacle to effective treatment. To address the lack of dermatophytosis data in Iraq, this study was designed to investigate the distribution and prevalence of dermatophytes in the human population and single point mutations in squalene epoxidase gene (SQLE) of terbinafine resistant isolates. The identification of 102 dermatophytes isolated from clinical human dermatophytosis was performed through morphological and microscopic characteristics followed by molecular analysis based on ITS and TEF-1α sequencing. Phylogeny was achieved through RAxML analysis. CLSI M38-A2 protocol was used to assess antifungal susceptibility of the isolates to four major antifungal drugs. Additionally, the presence of point mutations in SQLE gene, which are responsible for terbinafine resistance was investigated. Tinea corporis was the most prevalent clinical manifestation accounting for 37.24% of examined cases of dermatophytosis. Based on ITS, T. indotineae (50.98%), T. mentagrophytes (19.61%), and M. canis (29.41%) was identified as an etiologic species. T. indotineae and T. mentagrophytes strains were identified as T. interdigitale based on TEF-1α. Terbinafine showed the highest efficacy among the tested antifungal drugs. T. indotineae and T. mentagrophytes showed the highest resistance to antifungal drugs with MICs of 2-4 and 4 µg/mL, while M. canis was the most susceptible species. Three of T. indotineae isolates showed mutations in SQLE gene Phe397Leu substitution. A non-previously described point mutation, Phe311Leu was identified in T. indotineae and mutations Lys276Asn, Phe397Leu and Leu419Phe were diagnosed in T. mentagrophytes XVII. The results of mutation analysis showed that Phe397Leu was a destabilizing mutation; protein stability has decreased with variations in pH, and point mutations affected the interatomic interaction, resulting in bond disruption. These results could help to control the progression of disease effectively and make decisions regarding the selection of appropriate drugs for dermatophyte infections.

Knowledge, Attitude, and Practices of Food Handlers on Food Safety and Personal Hygiene During Arbaeenia Mass Gathering, Baghdad, Iraq, 2014: Cross-Sectional Study.

BACKGROUND: Millions of pilgrims attend Arbaeenia mass gathering (MG) in Iraq each year. Thousands of individuals work voluntarily at temporary rest areas (locally called Mawakib), distributed in most of Iraq governorates, to provide food and other services to the MG attendees. The potential for improper handling of food at Mawakib increases the risk of waterborne and foodborne diseases. OBJECTIVE: This study was aimed to assess the knowledge, attitude, and practices (KAP) of food handlers in Mawakibs in Baghdad city during Arbaeenia MG. METHODS: A random sample of 100 Mawakibs was selected in Baghdad, 50 from the eastern side (Rusafa) and 50 from the western side (Kerkh), and five food handlers were randomly selected from each Mawakib. A questionnaire was used to collect demographic data and KAP for food safety and personal hygiene. The questionnaire included 25 questions addressing knowledge, 10 addressing attitudes, and 14 addressing practices of the food handlers with respect to food safety and personal hygiene. Questions on knowledge and attitudes were answered through direct interview with the food handlers, whereas the questions on practices were answered through direct observation while handling or serving the food. SPSS version 20 (IBM SPSS Statistics 20) was used for data analysis and describing proportions. RESULTS: There was a varied knowledge of food safety practices among the individuals interviewed. On a scale of 3, the overall average score for both the attitude and practices for food safety and personal hygiene was 2, which corresponds to fair attitude and practices. The attitudes varied significantly by location, age group, and education, whereas the practices varied by location, age groups, employment, and previous experiences. CONCLUSIONS: The food handlers had unsatisfactory attitudes and practices toward food handling and personal hygiene. Their participation in food handling at Mawakib carries a potential risk of spreading foodborne and waterborne diseases. All individuals intending to serve in Mawakib as food handlers should be licensed from the Ministry of Health after completing a formal training in food safety and personal hygiene.