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8
It is Zika virus (ZIKV) that most often causes these neurological effects it appears to be the only arbovirus than can cause congenital malformations such as microcephaly. In any case, more scientific tests are needed to establish the causal relationship between the virus and this malformation (7-10
...
).
This document is a practical tool designed to help health workers improve clinical diagnosis and provide timely care for patients infected
with the dengue, chikungunya, or Zika virus. It is intended mainly for
health workers in primary care facilities where laboratory diagnosis of
arboviruses is not always available. However, this guide may also be
very useful in hospitals that provide second- and third-level care, as it
describes the clinical manifestations of each of the three most important
arboviral diseases currently found in the Region, the elements for
differential diagnosis, and their clinical behavior.
more
COVID-19: Training slides based on guidelines for case-finding, diagnosis, management and public health response in South Africa
Centre for Respiratory Diseases and Meningitis and Outbreak Response
National Department of Health, South Africa
(2020)
C2
Outline
• Welcome and objectives
• Microbiology, epidemiology and clinical presentation
• Surveillance for imported cases including case definitions
• Laboratory diagnosis • Infecti
...
on prevention and hospital readiness
• Patient flow and actions required at each step
• Co-ordinating a public health response
more
This guide includes information relevant for tuberculosis (TB) program and laboratory managers, as well as Ministry of Health officials across disease programs interested in establishing integrated solutions for specimen referral. Though TB-focused
...
in name, it offers integration-oriented assessment, design, and monitoring guidance related to improving coordination and efficiency, and is relevant for other programs as well. Country case studies include viral load and early infant diagnosis (EID) in Uganda and EID in Ethiopia.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus
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they are not confirmatory of infection. With the current low disease prevalence, the positive predictive value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care. Confirmation of Tbg infection requires microscopic examination of body fluids necessitating specific training. The best performing methods are laborious and reach 85–95% diagnostic sensitivity when performed by skilled personnel.
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus
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they are not confirmatory of infection. With the current low disease prevalence, the positive predictive value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care.
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Protocol for laboratory diagnosis of COVID_19, in the framework of the health emergency
To meet the need for laboratory diagnosis to be integrated in community care, the new 2022 Update describes point-of-care tests that can be performed both in district laboratories and peripheral hea
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lthcare facilities by non-specialist staff. Also included are recently developed self-tests.
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The meeting was held from 26 to 27 March 2018 to review and discuss the following topics:
Advances and challenges in the use of fTLC, and new approaches to detecting mycolactone using monoclonal antibodies (mAbs).
The status of development of rapid diagnostic tests (RDTs) targeting the MUL
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_3720 protein.
The role of PCR as a reference test, and hurdles in providing a confirmatory diagnosis and in establishing a quality assurance programme.
New molecular tools with potential for implementation at a level lower than in the national or regional reference laboratory, such as loop-mediated isothermal amplification (LAMP) and recombinase polymerase amplification (RPA).
The need to harmonize and standardize methods for collection and preparation of specimens, so samples can be referred for diagnosis and stored for evaluation of new diagnostic tests in optimal conditions.
Barriers to accessing early diagnosis and treatment, including coordination at the programme level, and lack of adequate diagnostic tools.
Defining target product profiles (TPPs) to guide the development of new diagnostic tools that can be applied at different levels of the health system. Participants agreed that two TPPs would be developed to address the current gaps: (i) a rapid test for BU diagnosis at the primary health-care level; and (ii) a test for diagnosis of BU that can also assist in treatment monitoring and differential diagnosis at the district hospital or reference centre.
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Under-diagnosis of asthma in ‘under-fives’ may be alleviated by improved inquiry into disease history. We assessed a questionnaire-based screening tool for asthma among 614 ‘under-fives’ with severe respiratory illness in Uganda. The questio
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nnaire responses were compared to post hoc consensus diagnoses by three pediatricians who were guided by study definitions that were based on medical history, physical examination findings, laboratory and radiological tests, and response to bronchodilators. Children with asthma or bronchiolitis were categorized as “asthma syndrome”. Using this approach, 253 (41.2%) had asthma syndrome. History of and present breathing difficulties and present cough and wheezing was the best performing combination of four questionnaire items [sensitivity 80.8% (95% CI 77.6–84.0); specificity 84.7% (95% CI 81.8–87.6)]. The screening tool for asthma syndrome in ‘under-fives’ may provide a simple, cheap and quick method of identifying children with possible asthma. The validity and reliability of this tool in primary care settings should be tested.
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The course is divided into four thematic modules:
1. General information; 2. Laboratory diagnosis; 3. Plasmodium species identification and parasite counting; 4. Microscopy quality assurance. To up
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date and review the basic concepts of epidemiology and laboratory diagnosis of malaria, as well as the corresponding quality controls.
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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
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laboratory of Instituto Nacional de Investigación 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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This manual is to assist health care providers and laboratory scientists to diagnose mycobacterium ulcerans disease (Buruli ulcer). The manual aims to achieve a better understanding of the clinical presentation and its
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diagnosis. The methods described are tailored to various levels of care and available resources to improve the diagnosis and surveillance of the disease.
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The document outlines comprehensive guidelines for managing cholera outbreaks in South Africa, focusing on prevention, diagnosis, treatment, and public health measures. It emphasizes the importance of rehydration therapy, sanitation, clean water acc
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ess, and community involvement to control the spread of the disease. It also provides protocols for handling outbreaks, including case identification, laboratory confirmation, and multi-sectoral coordination to reduce morbidity and mortality rates.
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ASLM in collaboration with the Africa Centres for Disease Control and Prevention, and in partnership with the Clinton Health Access Initiative, Amref and Last Mile Health present the Quality Assurance Framework for SARS-CoV-2 Antigen Rapid Testing for Diag
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nosis of COVID-19. This framework aims to provide general technical guidance to African Union Members States on the rollout, establishment, implementation, monitoring, and evaluation of SARS-CoV-2 Ag RDT interventions so as to effectively and efficiently detect, control and minimise errors in the performance of COVID-19 laboratory testing processes. It describes the core components for quality assurance, resources mobilisation and advocacy for scale up, monitoring, evaluation, learning and accountability for SARS-CoV-2 implementation.
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n October 2019, WHO convened the first meeting of the Buruli ulcer laboratory network (BU-LABNET) in Yaoundé, Cameroon, bringing together 11 laboratories from nine countries at the Pasteur Centre of Cameroon (CPC), the network’s Coordinating
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Centre. The network was formally established at this meeting (1) and its members were those present. The objective of BU LABNET is to improve diagnosis of Buruli ulcer based on polymerase chain reaction (PCR) using standardized testing protocols, involving external quality assurance programmes and sharing knowledge among member laboratories.
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Package and approaches in areas of intense transmission of Ebola virus
World Health Organization
(2014)
Ebola interventions: The intervention to combat Ebola aims to stop human-to-human transmission. The package is composed of five elements necessary to control the spread of the disease: care to patients, contact monitoring, safe burials, laboratory
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support and social mobilisation.
The document also describes key information on Ebola virus disease, patient care, contact tracing and monitoring, safe and dignified burial, laboratory diagnosis.
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First published in 2020, this toolkit is intended for clinicians working in acute care, managing adult and paediatric patients with acute respiratory infection, including severe pneumonia, acute respiratory distress syndrome, sepsis and septic shock. The main objective is to provide key tools for us
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e in the care of critically ill patients – from hospital entry to hospital discharge.
The 2022 updated version includes new tools and adapted algorithms, checklists, memory aids for COVID-19 and influenza, and the latest clinical evidence regarding clinical management of SARI. It is intended to help clinicians care for SARI patients: from epidemiology of severe acute respiratory infections, screening and triage, infection prevention and control, monitoring of patients, laboratory diagnosis, principles of oxygen therapy and different types of ventilation (invasive and non-invasive), as well as antimicrobial and immunomodulator therapies, to ethical and quality of care assessments.
The first edition is availbel in Ukrainian and Russian
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Leptospirosis is a zoonotic disease with epidemic potential, especially after a heavy rainfall,
caused by a bacterium called Leptospira. Leptospira interrogans is pathogenic to humans and
animals, with more than 200 serologic variants or serovars. Humans usually acquire
leptospirosis through dire
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ct contact with the urine of infected animals or a urine-contaminated
environment. Human-to-human transmission occurs only very rarely. Leptospirosis may present
with a wide variety of clinical manifestations, from a mild illness that may progress to a serious
and sometimes fatal disease. Its symptoms may mimic many diseases, such as influenza,
dengue and other viral haemorrhagic diseases; making the correct diagnosis (clinical and
laboratory) at the onset of symptoms is important to prevent severe cases and save lives,
primarily in outbreak situations.
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The Manual for Parasitological Surveillance in Prevention of Reintroduction or Re-establishment of Malaria in Sri Lanka (2019) provides guidelines to health professionals on how to conduct effective malaria surveillance to prevent the reintroduction of the disease in Sri Lanka, which was certified m
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alaria-free in 2016.
The manual outlines strategies for active and passive case detection, laboratory diagnosis, case investigation, foci investigation, and follow-up measures. It emphasizes targeted screening of high-risk populations, including travelers and migrant workers, and explains the importance of prompt reporting, accurate parasitological confirmation, and coordination between healthcare levels. The overall goal is to maintain Sri Lanka’s malaria-free status by ensuring early detection and rapid response to any imported or locally suspected malaria cases.
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This publication is based on the list of clinical interventions selected from clinical guidelines on prevention, screening, diagnosis, treatment, palliative care, monitoring and end of life care. This publication addresses medical devices for six ty
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pes of cancer: breast, cervical, colorectal, leukemia, lung and prostate. The first section defines the global increase in cancer cases, the global goals to manage NCDs and the WHO activities related to these goals. The second section presents the methodology used for the selection of medical devices that support clinical interventions required to screen, diagnose, treat and monitor cancer stages, as well as the provision of palliative care, based on evidence-based information. The third section lists the priority medical devices required to manage cancer in seven different units of health care services: 1. Vaccination, clinical assessment and endoscopy, 2. Medical imaging and nuclear medicine, 3. Surgery, 4. Laboratory and pathology, 5. Radiotherapy, 6. Systemic therapy and 7. Palliative and end of life care
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