Accessed 2017
Please Download all Documents directly from the website: https://www.finddx.org/tb-laboratory-standard-operating-procedures-sops/
Laboratory Quality (TB01), General Procedures (TB02), Specimen Handling (TB03), Microscopy Procedures (TB04), Culture and drugs susceptibility testing (T...B05), Molecular methods (TB06), Equipment use and maintenance (TB07).
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The NLM Malaria Screener is a mobile app developed by the U.S. National Library of Medicine to support the diagnosis of malaria through automated analysis of blood smear images. It uses smartphone microscopy and machine learning to detect malaria parasites in thin blood smears, helping health worker...s and lab technicians—especially in low-resource settings—screen for Plasmodium falciparum infections. The app is intended for research and educational purposes and aims to enhance diagnostic accuracy where access to expert microscopists is limited. It provides results quickly and can assist in training or field screening, but it is not approved for clinical use.
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In June 2021, a virtual workshop on ECAMM and NCAMM for malaria microscopists was held, with participants from ten South-East Asian countries in attendance. The workshop covered topics such as microscopy training and quality assurance, as well as the challenges posed by the pandemic, including asses...sment disruptions and limited national reference laboratory capacity. Key recommendations emphasised the importance of improving diagnostic quality, building national and peripheral microscopy capacity, providing regular refresher training and using digital tools to support malaria elimination efforts.
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High levels of storage iron may increase malaria susceptibility. This risk has not been investigated in semi-immune adolescents. We investigated whether baseline iron status of nonpregnant adolescent girls living in a high malaria transmission area in Burkina Faso affected malaria risk during the fo...llowing rainy season. For this prospective study, we analysed data from an interim safety survey, conducted six months into a randomised iron supplementation trial. We used logistic regression to model the risk of P. falciparum infection prevalence by microscopy, the pre-specified interim safety outcome, in relation to iron status, nutritional indicators and menarche assessed at recruitment.
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The objective of the study was the validation and implementation of GeneXpert MTB/RIF for routine use in the rapid detection of tuberculosis and sensitivity to rifampicin in clinical samples; for this, 1592 respiratory samples were collected and analyzed in the laboratory of Instituto Nacional de In...vestigación en Salud Pública Guayaquil. The analysis of the results of GeneXpert in comparison with smear microscopy showed an initial sensitivity of 99.8% and specificity of 93.2%; The analysis of discrepancies using the results of the culture as a reference method showed that the GeneXpert results considered false negatives turned out to be true negatives, the same happens with the false positives that correspond to true positives. Recalculated the sensitivity and specificity of the GeneXpert was 99.8% and 100% correspondingly. The comparison with the drugs susceptibility test showed a sensitivity of 91.4% and a specificity of 95.5% for the GeneXpert MTB/RIF system. It is concluded that the implementation of the GeneXpert system allows solution to certain problems associated with the application of conventional diagnostic methodologies, decreasing the waiting times, and increasing the sensitivity and specificity in the diagnosis of drug-resistant tuberculosis, thus generating a valuable opportunity for early diagnosis.
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2nd edition. Children with TB comprise about 10-12% of the total TB cases diagnosed in the country. This burden is likely to be higher given the challenges in diagnosing TB in children. The symptoms of TB in children mimic those of other childhood diseases. Children do not readily expectorate and th...ey have pauci-bacillary TB hence some will be missed using bacteriological tests. The government has however introduced GeneXpert molecular testing that is more sensitive than microscopy in detecting TB. Health care workers therefore need a reference guide to obtaining sputum from children for testing. Treatment of TB in children has been reviewed and now includes Ethambutol. There are now improved paediatric friendly TB medicines for treatment of TB in children and health care workers need a reference guide to enable them accurately dispense the TB medicine to children. Malnutrition is a common predisposing factor for TB in children. On the other hand, TB predisposes children to malnutrition or worsens an existing state of malnutrition. Nutrition care and support forms an integral part of treatment for a child with TB disease.
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Int J Tuberc Lung Dis. 2019 Jul 1;23(7):858–864.Namibia ranks among the 30 high TB burden countries worldwide. Here, we report results of the second nationwide anti-TB drug resistance survey. To assess the prevalence and trends of multidrug-resistant TB (MDR-TB) in Namibia.
From 2014 to 2015, pat...ients with presumptive TB in all regions of Namibia had sputum subjected to mycobacterial culture and phenotypic drug susceptibility testing (DST) for rifampicin, isoniazid, ethambutol and streptomycin if positive on smear microscopy and/or Xpert MTB/RIF.
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The Malaria Partners International Webinar Series highlights the vital importance of education in the fight against malaria. The series provides a variety of educational resources, which have been created and curated by Malaria Partners International and its global partners. Key webinars address cri...tical topics such as the intersection of malaria and climate change, the impact of the pandemic on malaria control efforts, and the challenges of protecting vulnerable groups such as children and pregnant women. The series also highlights advances in malaria diagnostics, using case studies such as the Ghana Microscopy Project, and provides foundational knowledge on malaria transmission and prevention. By fostering awareness and knowledge sharing, these webinars support global efforts towards malaria eradication.
Accessed on 01/07/2025.
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The 2022 report reviews the global malaria diagnostics market and technological landscape to support Unitaid’s 2023–2027 strategy for quality malaria case management. The report highlights the stalled progress of malaria control efforts, the gaps in access to diagnostics and the public health im...plications of P. falciparum HRP2/3 gene deletions, which compromise the accuracy of the widely used HRP2-detecting rapid diagnostic tests (RDTs). The report analyses the malaria RDT market, noting supplier diversification, price trends and production shifts resulting from the pandemic. It also addresses the emerging point-of-care G6PD testing market, which is required to ensure the safe radical cure of P. vivax infections. It surveys technological innovation, including digital microscopy, hemozoin tests, nucleic acid detection and biosensors, while emphasising that RDTs and microscopy will remain the mainstay of case management in the near term. The report identifies market shortcomings, access barriers and opportunities to improve malaria case management and diagnostic coverage.
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Malaria remains a significant global health concern, with 249 million cases and 408,000 deaths reported in 2022, primarily in sub-Saharan Africa. The most vulnerable populations are children under five and pregnant women. Rapid and accurate diagnosis using microscopy or malaria rapid diagnostic test...s (mRDTs) is essential to ensure timely treatment, prevent severe disease and promote the rational use of antimalarial drugs. This UNICEF Technical Bulletin provides guidance on the procurement, quality assurance and selection of WHO-prequalified mRDTs, including considerations for areas with a high prevalence of pfhrp2/3 gene deletions. The bulletin also highlights UNICEF’s approach to sustainability, product verification and long-term arrangements with manufacturers, which ensure a reliable supply while supporting integrated child health management programmes. The bulletin serves as a valuable resource for countries, partners and programmes involved in the implementation of malaria case management and diagnostics.
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A dermatologist can often diagnose scabies by visually examining a patient’s skin from head to toe.
To make sure that a patient has scabies, a dermatologist may remove some skin. This is painless. Your dermatologist will put the skin on a glass slide and look at the slide under a microscope. If y...our dermatologist sees scabies mites or their eggs, it is certain that you have scabies.
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procédures : guide méthodologique
SOP- Quality Assurance of Malaria Diagnostic Tests
La publicación describe el método aplicado en los laboratorios que han realizado la validación, como un método rápido de tamizaje para la detección de resistencia a isoniacida y rifampicina en muestras de esputo de pacientes con tuberculosis pulmonar que aún no hayan iniciado tratamiento anti...tuberculosis, pacientes nunca tratados, recaídas o abandonos recuperados con frotis positivo o negativo.
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2016 Ghana Malaria Indicator Survey (GMIS)
THE RESEARCH FOUNDATION OF CEREBRAL PALSY ALLIANCE newsletter – NOVEMBER 2012