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Team:Calgary/Notebook/Journal/PoliciesAndPractices
From 2014.igem.org
Policy & Practices Journal
Week 5: June 2nd - June 6th
Human practices sub-team was formed to focus on the purpose of the project and the positive impact it could have globally. This week was focussed mainly on brainstorming potential ideas for application of a rapid diagnostic test for infectious tropical diseases. One of the most prominent ideas was that of misdiagnosis and overdiagnosis for malaria and the lack of resources to provide an accurate and rapid diagnosis of these other dangerous diseases. Throughout this brainstorming we indicated that we wanted to further look into Dengue Fever, Meningococcal Meningitis and pneumonia that are often misdiagnosed as malaria. In regards to these diseases, we looked into their symptoms and misdiagnosis statistics and existing technologies of diagnosis. We began to look into potential contacts and experts that would be able to assist us with their expertise on the subject of misdiagnosis.
Week 6: June 9th - June 13th
Throughout this week we continued researching the various diseases, specifically focusing on misdiagnosis of malaria in developing countries and specifically the social and economic effects of this issue. We continued researching diseases that mimic malaria including dengue fever, meningitis, and pneumonia. On June 9th, we met with one of our experts Dr. Abebe Bayih who worked in the hospital setting in Ethiopia Through our meeting he was able to confirm that misdiagnosis is a major issue in developing countries due to lack of facilities and resources. We then discovered that typhoid fever has very similar symptoms to malaria such as high fever, headache, stomach pain, and loss of appetite and is often confused in diagnosis due to lack of lab resources and high rates of co-infection. Due to regular cases of this co-infection of malaria and typhoid fever, patients are often given antimalarial drugs with antibiotics to treat the typhoid fever. This presents two issues of both increasing unnecessary economic costs as well as the issue of antibiotic resistant bacteria. If lab resources are not available, physicians often diagnose based on clinical symptoms and the location the patient is coming from. Additionally we discussed the existing diagnostic technologies and both the economic aspects of the device as well as the accuracy of implementation. A rapid diagnostic tests for malaria cost less than $1 (Hume, 2007), and in order to ensure economic success of mass production of a diagnostic device for another infectious disease, it is incredibly important to factor in cost. The device needs to be able to withstand room temperature as freezers and other lab conditions for storage might be unavailable. This device needs to be robust and able to withstand transport and storage before the test itself is administered. The time it takes to administer the test and receive in a result was advised to be approximately an hour for multiple diseases. Although the potential for overnight diagnosis for multiple diseases would be useful, Dr. Bayih presented the scenario in which immediate decisions must be made without time for any test to be administered. Dr. Bayih was very receptive and enthusiastic regarding the idea of having an inexpensive version of the diagnostic test for home-use, field use, and for use in the hospitals with no lab equipment available as well as a digitalized more expensive version for the hospitals with available lab equipment . This meeting confirmed that the issue of misdiagnosis combined with overdiagnosis are a pressing issue in developing countries and multi diagnostic device with different cost models would be extremely useful and provide early diagnosis reducing the mortality rate for these diseases. We continued to research statistics regarding misdiagnosis and finalize our target diseases for the project. Infectious diseases such as typhoid, malaria and meningitis are commonly misdiagnosed due to overlap in clinical manifestations. A recent study done in Tanzania examined the hospitalization of 500 children with fever. 62% of the patients were treated for Malaria, while only 2% were actually tested positive (Duke Global Health, 2012). A study from Afghanistan showed that 413 of 414 patients tested negative for malaria, yet 412 of 414 were treated for it regardless (Nader, Chandler, Whitty, & Rowland, 2012)
Week 7: June 16th - 20th
On the 16th the human practices team met with Dr. Lisa Allen who has a biomedical background and a PhD in Public and Global Health. She has had direct international experience with misdiagnosis of malaria, working in a rural hospital in Tanzania since 2008. After discussing potential priorities of their impact with the hospital and the community, it was determined that malaria was perceived as the biggest issue. The medical officer in charge thought malaria diagnosis was ineffective, so the main task of their presence was to improve the situation. 95% of patients were diagnosed with malaria based on microscopy; however pregnant women and children under 5 malaria had a default diagnosis of malaria for a fever. In the region in which Dr. Allen worked, actual malaria cases were declining due to high altitude and the temperature drop to 4∘ Celsius during the night. Despite this decline the diagnosed cases of malaria were showing no decrease, despite the low potential for infection. Citizens of this area would automatically assume that that fever is malaria, culturally using this inclusive term to describe any similar illness, similar to how our society using the term “flu” to describe what is potentially different health issues. Dr. Allen emphasized that awareness and education of other neglected infectious diseases was imperative, as this mindset of clinicians was part of the problem. Missing a case of malaria is considered “unforgivable” therefore overdiagnosis is present. Clinicians are aware of the algorithms for diagnosis of other diseases, but usually do not have lab capacity for bacterial infections. Having “safer than sorry” mindset, patients often receive both antimalarial drugs and antibiotics in the hopes it will treat malaria, and whatever other diseases exist if it happens not be malaria. Overdiagnosis and treatment with both antimalarial drugs and antibiotics result in a great economic impact on institutions and patients, shortage of antimalarial drugs, and increasing drug resistance. Patients pay for their prescription drugs, and if the diagnosis is not accurate and treatment is unsuccessful, patients waste their personal resources. Dr. Allen also looked into rapid diagnostic tests (RDT) what clinicians think of them. Many seems to criticize them because RDT can’t quantify infections which might be important in determining the most effective type of treatment. The cultural mind set also plays a role. Microscopy slides come back positive, so malaria is diagnosed. A lot of RDTs come back negative and clinicians do not trust it. However, RDTs were only created to target malaria, so a multidiagnostic test might solve the problem in terms of mistrust because the big question asked when malaria tests come back negative is “If it is not malaria, then what is it?” Dr. Allen felt that an important aspect of success of the project would be to analyze the limitations that are presented in the developing world setting. We need to consider mind for our design include storage space (no freezers), shelf life, price (ideally the device needs to be under $1; microscopy only costs about 34), diagnosis time. Overnight tests were classified as an option that is not ideal as many patients have to work several hours to arrive at the hospital, and to commute again the next day would be discouraging for use of such testing. Dr. Allen recommended that we check the Foundation for Innovative New Diagnostics (FIND) and other organizations that are working on similar ideas for hopes of potential collaboration. We also discussed the potential for quantification of infection, and will look into this option however the PCR of DNA might affect this aspect. We have also introduced weekly policy and practice meetings to further discuss this subject with the Policy and Practices team. This week we are also planning on contacting Kirsten Jacobsen of Public Health Canada that was interested in this years iGEM team doing a video conference with a committee dedicated to looking at emerging technologies through Public Health Agency of Canada. This relationship could be a valuable resource to learning and impacting policy through our project and our policy and practices team. Additionally we are looking into contacting additional perspectives from experts in the field of malaria misdiagnosis to gather a broad view of perspectives from various individuals, occupations and respective regions of work. The team also broke up the weekly tasks into contacting additional experts and research on diseases in different regions as well as policy in Canada and developing countries.
Week 8: June 23rd - 27th
This week we began to work on the delegated tasks that each member of this subteam receive. We concentrated on looking at two regions: Tanzania and Ethiopia. One of the topics that was researched is the organization and management structure of the National Health System in Tanzania. The National Health System in Tanzania has central-district government structure. There are several layers in the Health Services Structure: village health service, dispensary services, Health Centre Services, District Hospitals, Regional Hospitals, and Referral/Consultant Hospitals. Village health service is the lowest level. Usually each village has two health workers who received short training before starting. Dispensary services supervise all the village health posts in its ward. Health Centre Services provide care for about 50,000 people. Each district then has a district hospital. Regional hospitals are similar to district hospitals, but they offer additional services and have specialists in certain fields. Referral/Consultant Hospitals represent the highest level in the country. There also are private health facilities that are often owned by government health care workers which creates a conflict of interest. In Ethiopia, on the other hand, the core of the health policy is accessibility of healthcare for all parts of the population, and encouraging private and non government organization participation in the health sector. Some of the priorities of the health policy include health information, education, communication, development of health service management systems, and provision of essential medicines, medical supplies, and equipment. We also found a paper on National Drug Policy of The Transitional Government of Ethiopia (Nov. 1993). The following is the summary of the relevant sections: 1. Selection of Drugs This section states that National Drug list will be formulated considering safety, efficiency, quality and cost and based on health problems in the country, infrastructure, and fundings. National Drugs Advisory Committee will be established to evaluate and decide upon drugs and to create lists of drugs used in the country. 2. Drug Supply The country plans to establish drug manufacturing facilities with the possible help from private investments. Pharmacists would be responsible for compounding drugs in hospitals, pharmacies and drugs while maintaining required standards. The government will also establish an enterprise to distribute the drugs on the national and regional levels. Both public and private sectors will be involved in the production of drugs. 3. Stock Management and Distribution Storage facilities will be created to ensure proper conditions for drug storage. 4. Drug Administration and Control The National Drug Advisory Committee will be responsible to evaluating drugs based on safety, quality, price, and other criterias. Drugs that satisfy the requirements will be issued certificated and existing drugs will go through regular evaluations. Information about harmful and beneficial effects of drugs will be collected. 5. Manpower Training and Utilization All professionals and biotechnologists will receive proper training. 6. Drug Information and Promotion Accurate information and reference materials will be distributed to the workers in the field. 7. Trading Agencies and Scientific Bureaus 8. Drug Use A list of prescription and nonprescription drugs will be created. Drug dispensing will be monitored by licensed professionals. 9. Traditional Drugs 10. Research and Development Research facilities will be established to carry out drug-related research. Research will strengthen the quality of pharmaceutical services. 11. Drug Pricing The government will make an effort to ensure that public gets affordable pricing for drugs. Additionally we continued to reach out to experts in the area of misdiagnosis and are waiting on the responses of two individuals to give us another perspective on this global issue.
Week 9: June 30th - July 4th
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Week 10: July 7th - July 11th
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