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Objective: To find out the prevalence of sexually transmitted diseases (STDS) among the patients attending the tertiary care center through microscopic screening.Methods: This Cross Sectional study was conducted from April 2018 to December 2019 wherein 500 samples were collected from patients attending the STD clinic of Skin and VD-OPD, and integrated counseling and testing center (ICTC), having cervical or urethral discharge along with signs and symptoms of sexually transmitted infections (STI) and were screened microscopically for the same.Results: This study reported only 2 cases suggestive of N. gonorrhoeae on microscopy, wherein the Gram-stained smear showed the presence of a particular arrangement of Gram-negative coffee bean shape cocci, both intracellular and extracellular, and plenty of pus cells.In Direct Microscopy findings, 49.2% of samples showed normal flora, 20.4% Gram-positive cocci, 15.8% Gram-negative cocci, 4% Clue cells, 13.8% with mixed flora, 3% Budding yeast-like cells and 0.4% showed Gram-negative cocci.Conclusion: Such studies involving the laboratory and demographic data should be conducted regularly, which can help in estimating the disease burden, strengthening the diagnostic capacity, and formulating the requisite strategy for tackling this problem through a syndromic approach.
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Aims: Epidermophyton, Microsporum and Trichophyton are the genera of dermatophytes causing superficial mycoses. These infections are on rise due to increase in immunocompromised patients and favorable environmental conditions in countries like India. The present study was undertaken to identify dermatophytes causing superficial fungal infection by microscopy and culture techniques which helps in accurate diagnosis and appropriate treatment of cases. Methodology and results: Samples were collected from affected sites after cleaning the affected surface with 70% alcohol. All samples were microscopically examined for presence of hyphal structures by digesting in 10% to 40% KOH solution. All samples were inoculated into Sabouraud dextrose agar with chloramphenicol and Sabouraud dextrose agar with cycloheximide and chloramphenicol and incubated at room temperature for four weeks. Tease mount technique and slide culture technique were used for identification of dermatophytes. One hundred and ten samples from clinically suspected dermatophytoses which includes 77(70%) from male and 33(30%) from female patients were processed for identification of dermatophytes. Samples were subjected to microscopy and culture. In 61 samples (54.54%) fungal hyphae were seen by direct microscopic examination (KOH). Fifty six samples (50%) yielded dermatophyte growth in culture. Trichophyton rubrum was the predominant species isolated followed by T. violaceum and T. mentagrophytes. Conclusion, significance and impact of study: Accurate and rapid diagnosis of superficial fungal infection is essential for proper management of cases. Direct microscopy is very good method for routine diagnosis, however culture remains gold standard.
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ArthrodermataceaeRESUMEN
Context: Giardiasis is one of the most common nonviral infections causing diarrheal illness worldwide. In this prospective cross-sectional study, we evaluated the RIDASCREEN® Giardia kit for detection of Giardia intestinalis in stool samples and compared the results with direct microscopy. Materials and methods: A total of 360 fecal samples were collected. They were then processed by wet fi lm, iodine preparation and an enzyme-linked immunosorbent assay (ELISA) kit to determine the presence of Giardia trophozoites and cysts. Statistical analysis was performed by sensitivity, specifi city, positive predictive value, negative predictive value and diagnostic accuracy. Results and Conclusion: Of the 360 cases, 17.2% samples were positive for Giardia by direct microscopy and 23.6% were found to be positive by ELISA (sensitivity ∼97%), but specifi city was ∼92% only. Because of less specifi city, we need to perform ELISA in congruence with direct microscopy, etc. Further studies need to be performed on a larger sample size using other molecular tests in order to get more accurate estimations
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Objective Giardia lamblia is an important pathogen of zoonosis giardiasis , it poses a potential threat to the quality of SPF (specific pathogen-free) laboratory animals cannot be ignored.The aim of this study is to establish the method of rapid diagnosis of Giardia lamblia, and analyze the test results of 516 batches form 17 manufactures.Methods Direct microscopy, Giemsa-fast staining and multiplex polymerase chain reaction (multiplex PCR) were applied to detect Giardia lamblia.Results Numerous of Giardia lamblia trophozoites and cysts were detected in SPF laboratory animals by using direct microscopy and Giemsa-fast staining, and multiplex PCR were performed to identify 18S rDNA,β-giardin, TPI and GDH genes of DNA extracted from these trophozoites and cysts identified Giardia lamblia.Direct microscopy, Giemsa-fast staining, and multiplex PCR methods can be used to detect Giardia lamblia.Of the 2562 SPF laboratory animals studied, 22.9%(586/2562) were positive for Giardia lamblia.Conclusions Direct microscopy , Giemsa-fast staining , and multiplex PCR were effective techniques with high sensitivity and specificity for rapid diagnosis of Giardia lambliain.It is not satisfactory that the results of Giardia lamblia examination in 516 batches form 17 manufactures failed to meet the requirements 100%.