Plasmodium Vivax Malaria: Usual Illness with Dysregulated Immune Profile.

Plasmodium Vivax Malaria: Usual Illness with Dysregulated Immune Profile. Iran J Immunol. 2020 Sep;17(3):250-254 Authors: Dixit S, Garg N, Kotru M, Gupta R Abstract Afebrile Plasmodium vivax disease is believed to be extremely rare; and so is the association of a secondary immune thrombocytopenia due to Plasmodiun vivax malaria. This is a case of malaria presenting in an atypical manner. A middle aged male (31 years) came with occasional bleeding around gums, small petechial haemorrhages over chest and abdomen, and blood in stools for a few months, but no fever. In addition, the cervical lymph nodes were slightly enlarged. Spleen was 3 cm below costal margin. Platelets were found to have markedly decreased with clusters of megakaryocytes in the bone marrow. A possibility of Immune thrombocytopenic purpura was considered and immunoglobulin started intravenously, however platelet counts remained low. Later, in a follow up smear, trophozoites of P. vivax were discovered. Antimalarial drugs (Artesunate) were administrated for the patient along with IV immunoglobulins, to which he responded. It was revealed by flow cytometry that the ratio of helper to cytotoxic cells was reversed (0.9). This highlighted a rare case of afebrile malaria in association with immune dysregulation. Accordingly, malaria, though uncommon, could trigger immune thrombocytopenia. PMID: 32996902 [PubMed - in process]
Source: Iranian Journal of Immunology - Category: Allergy & Immunology Tags: Iran J Immunol Source Type: research

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CONCLUSION: The study showed that acute febrile thrombocytopenia is an important seasonal syndrome. The common causes are dengue fever and malaria. Early identification of these diseases and prompt treatment decreases complications and reduces mortality. PMID: 31593535 [PubMed - as supplied by publisher]
Source: Infectious Disorders Drug Targets - Category: Infectious Diseases Authors: Tags: Infect Disord Drug Targets Source Type: research
Conclusions: Severe malaria is a highly frequent event in pregnant women, without differences by Plasmodium species. It shows early recognizable dangers signs. Hospital under-reporting was identified in 88% of severe cases as well as a lack of laboratory tests for a more comprehensive diagnosis. A protocol for the clinical diagnosis of pregnant women with malaria is required. PMID: 31529822 [PubMed - in process]
Source: Biomedica : Revista del Instituto Nacional de Salud - Category: International Medicine & Public Health Tags: Biomedica Source Type: research
Discussion Dengue is an important arboviral infection that affects about 40% of the world population. It is found mainly in topical and subtropical areas of the world mainly in developing countries but it range is spreading including the United States. A review of common arboviruses can be found here. It is a flaviavirus with 4 distinct serotypes named DENV-1 through DENV-4 and is spread by A. aegypti a day biting mosquito. Infection with one serotype confers immunity to that serotype but not the others. It does offer some protection for cross-infection but this only lasts a few months. Incubation period is 3-14 days with ...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
Segun Fatumo1,2,3*, Tommy Carstensen4, Oyekanmi Nashiru3, Deepti Gurdasani4†, Manjinder Sandhu4,5† and Pontiano Kaleebu1,2† 1Uganda Medical Informatics Centre, MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda 2London School of Hygiene and Tropical Medicine, London, United Kingdom 3H3Africa Bioinformatics Network (H3ABioNet) Node, Centre for Genomics Research and Innovation, NABDA/FMST, Abuja, Nigeria 4Human Genetics, Wellcome Sanger Institute, Hinxton, Cambridge, United Kingdom 5Division of Computational Medicine, Department of Medicine, University of Cambridge, Cambridge, United Kin...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
​BY GREGORY TAYLOR, DO; DAWN ZELENKA-JOSHOWITZ, DO; &ANDREW TAECKER, DOA 34-year-old man presented with intermittent fever and body aches for 10 days. He had been visiting family in India, and the symptoms began when he returned home. His fever had been as high as 104°F, and he was experiencing nausea, two episodes of bilious emesis, body aches, nonspecific abdominal pain, and multiple episodes of watery, nonbloody diarrhea.He said he knew of no tuberculosis exposure or ill contacts, and he was current on his routine influenza and hepatitis A vaccines. His temperature was 101.4°F (he had taken acetaminophen t...
Source: The Case Files - Category: Emergency Medicine Tags: Blog Posts Source Type: research
Conclusion: Fever with thrombocytopenia is an important clinical condition commonly caused by infections, particularly dengue and malaria. In majority of patients thrombocytopenia was transient and asymptomatic, but in significant number of cases there were bleeding manifestations. On treating the specific cause drastic improvement in platelet count was noted. Mortality in febrile thrombocytopenia is not directly associated with degree of thrombocytopenia but with concomitant involvement of other organs leading to multiorgan dysfunction. PMID: 30347949 [PubMed - in process]
Source: Journal of the Association of Physicians of India - Category: General Medicine Tags: J Assoc Physicians India Source Type: research
Authors: Trivedi T, Bajaj P, Moulick N, Padwal N Abstract Background: While global incidence of malaria has fallen in last decade, it continues to be an important cause of mortality and morbidity in acutely ill febrile patients. Many patients with complicated malaria require ICU care. In past it was believed that vivax is a benign form of malaria, but now all complications of malaria are reported in vivax. . Aims and Objectives: To find out proportion of patients with plasmodium vivax and plasmodium falciparum malaria requiring treatment in Medical ICU. To compare clinical profile and severity of illness in the...
Source: Journal of the Association of Physicians of India - Category: General Medicine Tags: J Assoc Physicians India Source Type: research
Conclusions: Tropical diseases formed the majority of admissions with bleeding manifestations. Thrombocytopenia is an important marker to predict mortality and also has a significant association with MICU stay. APACHE II score was found to be a good predictor of blood transfusion requirements.
Source: Indian Journal of Critical Care Medicine - Category: Intensive Care Authors: Source Type: research
LITFL • Life in the Fast Lane Medical Blog LITFL • Life in the Fast Lane Medical Blog - Emergency medicine and critical care medical education blog aka Tropical Travel Trouble 010 Peer Reviewer: Dr Jennifer Ho, ID physician QLD, Australia You are an ED doc working in Perth over schoolies week. An 18 yo man comes into ED complaining of fever, rash a “cracking headache” and body aches. He has just hopped off the plane from Bali where he spent the last 2 weeks partying, boozing and running amok. He got bitten by “loads” of mosquitoes because he forgot to take insect repellent. On e...
Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Tags: Clinical Cases Tropical Medicine arthralgia dengue fever rash Source Type: blogs
Semin Thromb Hemost DOI: 10.1055/s-0038-1657778Thrombocytopenia is a well-known manifestation of acute tropical infectious diseases. The role of platelets in infections has received much attention recently because of their emerging activities in modulation of inflammatory responses, host defense, and vascular integrity. However, while many studies have addressed thrombocytopenia in tropical infections, abnormalities in platelet function have been largely overlooked. This is an important research gap, as platelet dysfunction may contribute to the bleeding tendency that characterizes some tropical infections. The development...
Source: Seminars in Thrombosis and Hemostasis - Category: Hematology Authors: Tags: Review Article Source Type: research
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