ABSTRACT
Infectious diseases frequently affect the peripheral nervous system by direct infiltration or indirect inflammatory response induced by the microorganisms. Peripheral neuropathies are commonly observed in the course of HIV infection and represent the major neurological complication of the disease. The heterogeneous spectrum makes the diagnosis challenging even for the expert neurologist and includes distal symmetric neuropathies, demyelinating neuropathies, mononeuritis multiplex, progressive polyradiculopathies, and diffuse infiltrative lymphocytosis syndrome. Peripheral neuropathy (PN) is one of the most frequently reported extrahepatic complications of HCV chronic infection, occurring in about 10% of HCV-infected patients. PN usually coexists with cryoglobulinemia and may manifest as chronic "length dependent” distal symmetrical sensorimotor or mainly sensory axonal polyneuropathy, "stocking-glove” asymmetric polyneuropathy, subacute mononeuropathy multiplex, or asymmetrical neuropathy involving large or small nerve fibers. Pure motor or demyelinating neuropathies and, rarely, cranial or autonomic neuropathies, have also been reported. Among the rarest causes of infectious neuropathies, leprosy and borreliosis are an important global health concern. The differential diagnosis is often difficult and sometimes, in particular in suspected neuritic form of leprosy, requires nerve biopsy and a detailed neuropathological analysis that can help for personalized therapy. With the COVID-19 pandemic, many cases of patients with peripheral nervous system involvement have been described, in the absence of a direct role of SARS-CoV-2. © Springer Nature Switzerland AG 2022.
ABSTRACT
The clinical case describes the difficulties of differential diagnosis of polyneuropathy that developed, after Gam-Covid-Vac vaccination on the background, of combined, infectious pathology (HIV infection, tick-borne borreliosis, COVID-19) in a young woman. It is shown that various infectious and noninfectious diseases with similar clinical symptoms (peripheral nervous system, affliction.) occurring simultaneously in one patient can significantly affect each other's course and. complicate the establishment of the true cause of polyneuropathy. It should, be noted, that in this example, the establishment of a final diagnosis was carried out collectively, by consensus, and. was based, on the effectiveness of etiotropic (antibacterial) treatment, which in fact was an exjuvantibus therapy option, which made it possible to establish the most probable etiology of polyneuropathy -tick-borne borreliosis. In turn, HIV infection and. possibly vaccination, according to the authors, could, cause immunosuppression, which, affected, the degree of dissemination, of Borrelia burgdorferi. It is also likely that the insufficient immune response in combination. with the cascade plasma filtration session affected the initial dubious results of the serological tests, which further complicated. the diagnosis.Copyright © 2022 Authors. All rights reserved.
ABSTRACT
Case report Cytomegalovirus (CMV) causes latent asymptomatic infection in most adults worldwide. Immunodeficiency or immune activation can disrupt viral suppression and lead to viral reactivation, occasionally causing a mononucleosis-like illness in otherwise healthy immunocompetent people. A 37-year- old female presented with a 10-day history of fevers, chills, right-sided neck tenderness, rapidly expanding rash, as well as myalgia, arthralgia, and weakness. She had received her first dose of tozinameran (Pfizer-BioNTech COVID-19 mRNA vaccine) 11 days prior to symptom onset. She was admitted to hospital for further investigations, and was seen by an allergy/clinical immunology specialist, with the diagnosis initially felt to be a delayed serum sickness-like reaction to the vaccine. On admission to hospital, the patient was febrile (37.8C) and tachycardic (122 beats/min). Her physical examination was remarkable for right-sided submandibular tenderness, diffuse blanchable, nonpruritic, erythematous, maculopapular rash, and mild facial swelling. There were no effused joints, lymphadenopathy, nor splenomegaly. Bloodwork showed pancytopenia and mild liver transaminase elevation. Blood cultures were negative. Multiple PCR tests for COVID-19 were negative. Monospot and serology for HBV, HIV, and B. burgdorferi were negative. CMV serology was positive, but unavailable until after discharge. ANA and rheumatoid factor were negative. CT head demonstrated nonspecific edema in the right submandibular area without abscess. On outpatient follow-up, the patient reported symptom resolution over two months. Repeat CMV titres two months post hospitalisation showed strongly elevated IgG, which upon consultation with infectious diseases was felt to represent CMV reactivation (Table 1). CMV viral load was negative. Pancytopenia resolved and transaminases normalized. She received her second dose of tozinameran 4 months post first dose with prophylactic valacyclovir 1g once daily for 1 week prior to and 1 week post vaccination as recommended by infectious diseases and remained asymptomatic. This case is the first known description of CMV reactivation secondary to COVID-19 vaccination. It may be underdiagnosed due to nonspecific symptomatology, as CMV seropositivity ranges from 60-100% of all adults. While causality has yet to be established, recognition of this condition may allow appropriate treatment and prophylaxis in order to facilitate safe COVID-19 vaccination in affected individuals. The patient has provided verbal consent through the telephone for the publication of this case report due to the current COVID-19 pandemic, with written consent to follow.
ABSTRACT
The clinical case describes the difficulties of differential diagnosis of polyneuropathy that developed, after Gam-Covid-Vac vaccination on the background, of combined, infectious pathology (HIV infection, tick-borne borreliosis, COVID-19) in a young woman. It is shown that various infectious and noninfectious diseases with similar clinical symptoms (peripheral nervous system, affliction.) occurring simultaneously in one patient can significantly affect each other's course and. complicate the establishment of the true cause of polyneuropathy. It should, be noted, that in this example, the establishment of a final diagnosis was carried out collectively, by consensus, and. was based, on the effectiveness of etiotropic (antibacterial) treatment, which in fact was an exjuvantibus therapy option, which made it possible to establish the most probable etiology of polyneuropathy -tick-borne borreliosis. In turn, HIV infection and. possibly vaccination, according to the authors, could, cause immunosuppression, which, affected, the degree of dissemination, of Borrelia burgdorferi. It is also likely that the insufficient immune response in combination. with the cascade plasma filtration session affected the initial dubious results of the serological tests, which further complicated. the diagnosis.Copyright © 2022 Authors. All rights reserved.
ABSTRACT
The clinical case describes the difficulties of differential diagnosis of polyneuropathy that developed, after Gam-Covid-Vac vaccination on the background, of combined, infectious pathology (HIV infection, tick-borne borreliosis, COVID-19) in a young woman. It is shown that various infectious and noninfectious diseases with similar clinical symptoms (peripheral nervous system, affliction.) occurring simultaneously in one patient can significantly affect each other's course and. complicate the establishment of the true cause of polyneuropathy. It should, be noted, that in this example, the establishment of a final diagnosis was carried out collectively, by consensus, and. was based, on the effectiveness of etiotropic (antibacterial) treatment, which in fact was an exjuvantibus therapy option, which made it possible to establish the most probable etiology of polyneuropathy -tick-borne borreliosis. In turn, HIV infection and. possibly vaccination, according to the authors, could, cause immunosuppression, which, affected, the degree of dissemination, of Borrelia burgdorferi. It is also likely that the insufficient immune response in combination. with the cascade plasma filtration session affected the initial dubious results of the serological tests, which further complicated. the diagnosis.Copyright © 2022 Authors. All rights reserved.
ABSTRACT
Introduction: Coronavirus disease 2019 (COVID-19) was described for the first time in December 2019. Symptoms include cough, fever, myalgia, headache, dyspnea, sore throat, diarrhoea, nausea, vomiting, and loss of smell or taste. Viral-induced myocarditis and pericarditis have been described in developed countries, and SARS-CoV-2 is cardiotropic. Pericarditis can mimic myocardial infarction (MI) in its presentation and ECG findings. Case report: A 46-year-old smoker with no previous medical condition presented with left-sided chest pain, sweating, trouble breathing, palpitations, and left-hand numbness. He denied having reduced effort tolerance, orthopnea, or paroxysmal nocturnal dyspnea. Three weeks earlier, he was infected with Covid-19 category 2A infection. On examination, he is haemodynamically stable, and his respiratory and cardiovascular exams were unremarkable. His ECG showed anterior ST elevation, and the bedside echocardiography showed no hypokinesia or pericardial effusion. High-sensitive cardiac troponin T reached 5000. The emergency team contacted the on-call cardiologist for primary PCI. After analysing the serial ECG and bedside echocardiography, he decided against primary PCI due to acute pericarditis. He was started on intravenous diclofenac acid and colchicine. His pain subsided after 3 days with NSAIDs and colchicine. He was reviewed back in the clinic and had a normal ECG and ECHO. Discussion(s): Pericardial disease caused by COVID-19 has been more common since the pandemic outbreak. Mycobacterium tuberculosis, Borrelia burgdorferi, Parvovirus B19, and Epstein-Barr virus are the most common infecting agents. Most cases of acute pericarditis in developing nations are due to tuberculosis infection. Nearly half of all patients who had previously recovered from COVID-19 infection have now presented with new cardiac MRI findings indicating pericardial involvement. Fibrosis and/or oedema may be linked to persisting active pericarditis following infection resolution, which may lead to short and long-term clinical consequences. Conclusion(s): The ST elevation in post-covid patients does not always signify myocardial infarction. Despite complaints and ECG findings, this could not be an acute myocardial infarction, for which clinicians should have a high index of suspicion.Copyright © 2023
ABSTRACT
The choroid plexus is situated at an anatomically and functionally important interface within the ventricles of the brain, forming the blood-cerebrospinal fluid barrier that separates the periphery from the central nervous system. In contrast to the blood-brain barrier, the choroid plexus and its epithelial barrier have received considerably less attention. As the main producer of cerebrospinal fluid, the secretory functions of the epithelial cells aid in the maintenance of CNS homeostasis and are capable of relaying inflammatory signals to the brain. The choroid plexus acts as an immunological niche where several types of peripheral immune cells can be found within the stroma including dendritic cells, macrophages, and T cells. Including the epithelia cells, these cells perform immunosurveillance, detecting pathogens and changes in the cytokine milieu. As such, their activation leads to the release of homing molecules to induce chemotaxis of circulating immune cells, driving an immune response at the choroid plexus. Research into the barrier properties have shown how inflammation can alter the structural junctions and promote increased bidirectional transmigration of cells and pathogens. The goal of this review is to highlight our foundational knowledge of the choroid plexus and discuss how recent research has shifted our understanding towards viewing the choroid plexus as a highly dynamic and important contributor to the pathogenesis of neurological infections. With the emergence of several high-profile diseases, including ZIKA and SARS-CoV-2, this review provides a pertinent update on the cellular response of the choroid plexus to these diseases. Historically, pharmacological interventions of CNS disorders have proven difficult to develop, however, a greater focus on the role of the choroid plexus in driving these disorders would provide for novel targets and routes for therapeutics.
Subject(s)
COVID-19 , Zika Virus Infection , Zika Virus , Blood-Brain Barrier/physiology , Brain , Choroid Plexus/physiology , Humans , SARS-CoV-2ABSTRACT
Over the last decade many large world cities have scaled up efforts at climate adaptation, a primary focus of which is protecting population health. With extreme weather disasters increasing worldwide, public health agencies are among local institutions under greatest stress;the Covid-19 pandemic has only heightened pressure on these agencies. Yet the limited literature examining adaptation actions across world cities suggest few, mainly high-income cities report health-related adaptation, while city public health agency engagement in adaptation has received little research attention. In this comparative review, we aimed to characterize the public health role in the adaptation plans of 22 large cities pre-identified as highly health-adaptive, by examining five health-associated adaptation activities chosen as "promising practice" based on evidence synthesized from evaluation research and practical experience: (i) hazard and vulnerability mapping;(ii) extreme weather preparedness and response;(iii) extreme heat plans (including heat early warning);(iv) non-heat early warning (e.g., flooding, vector-borne disease);and (v) climate-health monitoring and outcome surveillance. We found most (90%) city adaptation plans reported actions in at least three of these five activity areas. However, only 73% of these health-focused plans reported involvement of a public health agency (though the share was higher for cities in low- and middle-income countries). We detected differences across the five activities, including an ascending pattern of public health engagement starting with heat plans and including activities such as preparedness and mapping as health agency involvement increased. We also identified substantial presence of other city agencies-notably urban planning, emergency management and public utilities-in implementing these health-associated activities. With every world region likely to experience more widespread and intensifying climate impacts, and growing pressure on local public health agencies in conjunction with the Covid-19 pandemic, we identify opportunities for enhancing public health engagement in climate adaptation in large cities with a view to scaling up their ability to contribute to climate adaptation goals.
ABSTRACT
Background and aims: A 36-years-old man was admitted to the neurological department with complaints on severe drowsiness, sudden falling asleep, fatigue, unsteadiness when standing and walking, inability to speak and write intelligibly, increased body temperature and appetite. The first symptoms occurred 2 month before admission. To note, before the onset of the disease, patient felt a pain and dissension in the testes. Methods: There weren't any significant findings in neurological status, unless mild cognitive (MMSE - 20 points) and behavioral impairments. He had been administered a list of analysis: hematology (WBC 10.9 10
ABSTRACT
We report a 15-year-old boy presenting at our emergency department with acute onset of dysarthria and prior headache, rotary vertigo, nausea, vomiting and gait disturbance for 2 days. 18 days earlier he was tested positive for SARS CoV-19. Physical examination showed pronounced dys-arthria, nystagmus, absent reflexes, dysmetria and ataxia. Laboratory findings showed relative lymphocytosis with a negative C-reactive pro-tein, normal coagulation and elevated liver enzymes (AST, ALT, GGT). Drug screening was negative. First suspicion was postinfectious cerebellitis and he was admitted to IMC for observation. Subsequently, vomiting fre-quency rose, hence cMRI was performed, but showed no abnormalities. Miller-Fisher syndrome was suspected, however CSF examination showed no cytoalbumin dissociation, but discrete mononuclear cell count eleva-tion. Ceftriaxone and acyclovir were administered empirically. In addition, intravenous immunoglobulin and corticosteroids were given to treat viral cerebellitis/encephalitis. Due to suggestive atypical lymphocytes in the blood count, EBV testing was performed and serologies were positive. Multiple CSF viral/bacterial testings (Borrelia burgdorferi, Enterovirus, VZV, HSV 1/2) showed slightly positive EBV (PCR), congruent with blood results. Additionally, SARS-CoV-19 IgG were positive. The patient's condi-tion barely improved, a follow up cMRI showed no changes. Mobilization was fostered with a wheel chair and physical therapy. After two and a half weeks, he was discharged to pediatric neurorehabilitation in order to im-prove dysarthria, ataxia and address neuropsychological abnormalities. Two months after the diagnosis he is walking without aids but still shows trunk ataxia and dysarthria. He is still making constant progress and will hopefully recover completely. Neurological manifestation of EBV infection is extremely rare with the ma-jority of cases described in children. Nevertheless, some neurological manifestations have already been described including encephalitis, cere-bellitis, meningitis, transverse myelitis, and Guillain-Barré syndrome. These manifestations can occur alone or in the setting of infectious mon-onucleosis. In our case a co-infection of SARS-Cov-19 and EBV or a reactivation of EBV due to SARS-Cov-19 is possible as cause of the cerebellitis. Treatment op-tions were fully employed, but the recovery presented a slow course.
ABSTRACT
Lyme borreliosis (LB), the most prevalent vector-borne disease in Europe, is caused by Borrelia burgdorferi sensu lato complex species and transmitted by the tick Ixodes ricinus. The Czech Republic is an endemic country for LB. The disease affects the skin, neurological, musculoskeletal, cardiac or ocular tissue, and the most frequent clinical manifestations are erythema migrans and Lyme neuroborreliosis. In 2018, the EU case definition of Lyme neuroborreliosis was published, and neuroborreliosis has become reportable to the European Surveillance System. In this paper, we describe the LB surveillance system and reporting of human cases in the Czech Republic. Epidemiological characteristics of Lyme borreliosis are presented for 2018 and 2019. Gaps in and limitations of the existing national LB surveillance system were identified with regard to the reporting of neuroborreliosis in accordance with the EU case definition. In the Czech Republic, LB surveillance is nationwide, comprehensive, and mandatory. Case based data on all clinical manifestations of incident LB are reported to the electronic Information System of Infectious Diseases (ISIN). In 2018 and 2019, 4724 and 4102 LB cases, i.e., 44.5 and 38.4 cases per 100,000 population, were reported to ISIN, respectively. Overall, 46.3 % of cases were male and 53.7 % were female. The highest morbidity was observed in adults 50–75 and children 5–9 years old. The most affected regions were Vysočina and Olomoucký. Nine districts recorded more than 100 cases per 100,000 population. Erythema migrans appeared in 3173 (67.2 %) and 2756 (67.2 %) patients in 2018 and 2019, respectively. In 2018, 596 (12.6 %) Lyme neuroborreliosis cases were diagnosed only on the basis of clinical manifestations while in 2019, a total of 567 (13.8 %) cases of neuroborreliosis fully meeting the EU case definition were reported. The Czech Republic is an endemic country for LB with some hotspots, similar to some central, northern and north-eastern European countries. To implement the EU neuroborreliosis surveillance in the Czech Republic, ISIN technical update, addition of required variables to it, preparation of legislation update, and training of health professionals were needed. [ FROM AUTHOR] Copyright of Biologia is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)
ABSTRACT
Tick-borne pathogens cause infectious diseases that inflict much societal and financial hardship worldwide. Blacklegged ticks, Ixodes scapularis, are primary vectors of several epizootic and zoonotic pathogens. The aim was to find varius pathogens of I. scapularis and to determine their prevalence. In Ontario and Quebec, 113 I. scapularis ticks were collected from songbirds, mammals, including humans, and by flagging. PCR and DNA sequencing detected five different microorganisms: Anaplasma phagocytophilum, 1 (0.9%); Babesia odocoilei, 17 (15.3%); Babesia microti-like sp., 1 (0.9%); Borrelia burgdorferi sensu lato (Bbsl), 29 (26.1%); and Hepatozoon canis, 1 (0.9%). Five coinfections of Bbsl and Babesia odocoilei occurred. Notably, H. canis was documented for the first time in Canada and, at the same time, demonstrates the first transstadial passage of H. canis in I. scapularis. Transstadial passage of Bbsl and B. odocoilei was also witnessed. A novel undescribed piroplasm (Babesia microti-like) was detected. An established population of I. scapularis ticks was detected at Ste-Anne-de-Bellevue, Quebec. Because songbirds widely disperse I. scapularis larvae and nymphs, exposure in an endemic area is not required to contract tick-borne zoonoses. Based on the diversity of zoonotic pathogens in I. scapularis ticks, clinicians need to be aware that people who are bitten by I. scapularis ticks may require select antimicrobial regimens.