Other bacterial diseasesErysipeloid

Author(s):  
Robert M. Smith

Erysipeloid is an acute bacterial infection usually causing acute localised cellulitis as a secondary infection of traumatised skin. It is caused by Erysipelothrix rhusiopathiae (insidiosa), a non-sporulating Gram-positive rod-shaped bacterium, ubiquitous in the environment. It is the cause of swine erysipelas and also a pathogen or commensal in a variety of wild and domestic birds, animal and marine species. Human infection primarily associated with occupational exposure to infected or contaminated animals or handling animal products and therefore is commoner in farmers, butchers and abattoir workers and fisherman.Risk factors for the rare human invasive E. rhusiopathiae infection include conditions that affect the host immune response, such as alcoholism, cancer and diabetes. Treatment is with penicillin.Erysipelas can affect animals of all ages but is recognised more frequently in juveniles. Swine exhibit similar stages to the disease in man. Clinical manifestations in swine vary from the classical rhomboid urticaria (diamond skin), the condition of greatest prevalence and economic importance, to sepsis, polyarthritis, pneumonia and death.Prevention is largely a matter of good hygiene, herd management and by raising awareness in those at risk (especially butchers, farmers and fishermen); ensuring that clinicians are aware of E. rhusiopathiae as a possible cause of occupational skin lesions and bacterial endocarditis is important.

2021 ◽  
pp. 1-7
Author(s):  
Dessalew Habte ◽  
◽  
Dessalew Tamir ◽  

Erysipelas is an infectious disease seen mainly in growing pigs and characterized clinically by fever, arthritis, skin lesions and sudden death. The disease may be acute, subacute, or chronic. Swine erysipelas is a disease caused by a specific micro organ Erysipelothrix rhusiopathiae whic h is a zoonotic ubiquitous gram-positive bacterium that causes erysipelas in swine, mammals, birds and erysipeloid in humans. People in contact with animals, animal products or animal wastes are at greatest risk. The acute form of swine erysipelas may have been confused for other diseases in pigs which are characterized by acute symptoms such as sudden death (for example, African swine fever). It can be diagnosed by its clinical signs, necropsy findings, bacteriology, antimicrobial response, molecular and serological examinations. It is recommended to increase awareness of the disease among animal and human practitioners as treatment is easy and available and vaccination is possible. However, the disease is still unknown to local veterinarians, clinical doctors, meat inspectors, butchers and laboratory personnel. Proper hygiene, regular pork inspection, use of protective wear among people working/ in contact with animals should be promoted. The disease causes high economic loss in pig rearing areas and influences the public health being a severe zoonotic disease. So the objective of this review is to create a better understanding of the disease for proper control and prevention of the disease


2020 ◽  
pp. 1-7
Author(s):  
Dessalew Habte ◽  
◽  
Dessalew Tamir ◽  

Erysipelas is an infectious disease seen mainly in growing pigs and characterized clinically by fever, arthritis, skin lesions and sudden death. The disease may be acute, subacute, or chronic. Swine erysipelas is a disease caused by a specific micro organ Erysipelothrix rhusiopathiae whic h is a zoonotic ubiquitous gram-positive bacterium that causes erysipelas in swine, mammals, birds and erysipeloid in humans. People in contact with animals, animal products or animal wastes are at greatest risk. The acute form of swine erysipelas may have been confused for other diseases in pigs which are characterized by acute symptoms such as sudden death (for example, African swine fever). It can be diagnosed by its clinical signs, necropsy findings, bacteriology, antimicrobial response, molecular and serological examinations. It is recommended to increase awareness of the disease among animal and human practitioners as treatment is easy and available and vaccination is possible. However, the disease is still unknown to local veterinarians, clinical doctors, meat inspectors, butchers and laboratory personnel. Proper hygiene, regular pork inspection, use of protective wear among people working/ in contact with animals should be promoted. The disease causes high economic loss in pig rearing areas and influences the public health being a severe zoonotic disease. So the objective of this review is to create a better understanding of the disease for proper control and prevention of the disease.


Author(s):  
J.K. Wabacha ◽  
G.K. Gitau ◽  
J.M. Nduhiu ◽  
A.G. Thaiya ◽  
P.M.F. Mbithi ◽  
...  

This report concerns an outbreak that occurred during July/August 1997. Ten pigs from a herd of 181 pigs in a medium-scale, semi-closed piggery in Kiambu District, Kenya, contracted the clinical disease. The main clinical findings in affected pigs included: fever (40.5-41.8 oC), prostration, inappetence, dog-sitting posture, abortion, erythema and raised, firm to the touch and easily palpated light pink to dark purple diamond-shaped to square/rectangular spots on the skin around the belly and the back. Based on the pathognomonic skin lesions, a clinical diagnosis of swine erysipelas was made. The diagnosis was confirmed by the isolation of Erysipelothrix rhusiopathiae organisms from the blood and skin biopsies taken from the affected pigs. Response to treatment with a combination of procaine penicillin and dihydrostreptomycin at the dosage rate of 20 000 IU/kg body weight (based on procaine penicillin) for 3 days was good and all the affected pigs recovered fully. The farm was placed under quarantine to prevent spread of the disease.


1989 ◽  
Vol 2 (4) ◽  
pp. 354-359 ◽  
Author(s):  
A C Reboli ◽  
W E Farrar

Erysipelothrix rhusiopathiae is a nonsporulating, gram-positive, rod-shaped bacterium which was identified more than 100 years ago as the etiologic agent of swine erysipelas. Since then, it has been found to cause infection in several dozen species of mammals and other animals. Humans become infected through exposure to infected or contaminated animals or animal products. By far the most common type of human infection is a localized, self-limited cutaneous lesion, erysipeloid. Diffuse cutaneous and systemic infections occur rarely. Approximately 50 cases of endocarditis have been reported; all but one recent case have involved native valves. The organism may be isolated from biopsy or blood specimens on standard culture media. It is identified by morphology, lack of motility, and biochemical characteristics; identification may be confirmed by the mouse protection test. It is susceptible to penicillins, cephalosporins, erythromycin, and clindamycin, but it is often resistant to many other antibiotics, including vancomycin, a drug frequently used in empiric therapy for infections due to gram-positive bacteria.


2011 ◽  
Vol 81 (5) ◽  
pp. 328-334 ◽  
Author(s):  
Oya Halicioglu ◽  
Sezin Asik Akman ◽  
Sumer Sutcuoglu ◽  
Berna Atabay ◽  
Meral Turker ◽  
...  

Aim: Nutritional vitamin B12 deficiency in infants may occur because the maternal diet contains inadequate animal products. Clinical presentations of the infants who had nutritional vitamin B12 deficiency were analyzed in this study. Subjects and Methods: Patients with nutritional vitamin B12 deficiency were enrolled in the study between 2003 and 2010. The diagnosis was based on a nutritional history of mothers and infants, clinical findings, hematological evaluation, and low level of serum vitamin B12. Results: Thirty children aged 1 - 21 months constituted the study group. Poverty was the main cause of inadequate consumption of animal products of the mothers. All infants had predominantly breastfed. The most common symptoms were developmental delay, paleness, apathy, lethargy, anorexia, and failure to thrive. Hematological findings were megaloblastic anemia (83.3 %), thrombocytopenia (30 %), and severe anemia (13.3 %). All of the mothers had low serum B12 levels; eight of them had megaloblastic anemia. Conclusion: The unusual clinical manifestations of vitamin B12 deficiency may also be seen apart from neurological and hematological findings. Nutritional vitamin B12 deficiency due to maternal deficiency might be a serious health problem in infants. Therefore, screening and supplementation of pregnant and lactating women to prevent infantile vitamin B12 deficiency should be considered.


Author(s):  
A.N. Pampura ◽  
E.E. Varlamov

Продукты животного происхождения обладают наиболее сбалансированным комплексом необходимых нутриентов, поэтому их включение в пищевой рацион оправданно в различные возрастные периоды. Клинические проявления аллергии к данным продуктам крайне разнообразны. Одним из ключевых аспектов обозначенной проблемы является диагностика и оценка вероятности развития перекрестной реактивности. К пищевым продуктам животного происхождения, наиболее часто индуцирующим симптомы, относятся коровье молоко, куриное яйцо, рыба, моллюски, ракообразные, мясо млекопитающих. В представленной статье изложены данные об основных классах пищевых аллергенов животного происхождения, индуцирующих развитие перекрестных аллергических реакций. Описаны синдромы, связанные с перекрестной реактивностью: птица-яйцо , кошка-свинина , рыба-курица и -Gal-синдром/ синдром красного мяса .Animal foods products contain the most balanced complex of essential nutrients. The clinical manifestations of allergy to these products are varied. Key aspect of this problem is diagnostics and assessment of cross-reactivity. The food animal products that more often induce symptoms include cows milk, hens egg, fish, mollusks, crustaceans, mammalian meat. Data on the main classes of food animal allergens inducing the development of cross-allergic reactions as well as syndromes associated with cross-reactivity like bird-egg , cat-pork , fish-chicken and a-Gal-syndrome/ red meat syndrome are described in this article.


2020 ◽  
Vol 16 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Alexander K.C. Leung ◽  
Joseph M. Lam ◽  
Kin F. Leong

Background: Scabies is a skin disease caused by an obligate human parasite mite Sarcoptes scabiei var. hominis. Children under the age of two and elderly individuals are at the greatest risk. Knowledge of this condition is important for an early diagnosis to be made and treatment to be initiated. Objective: The review aimed to familiarize physicians with the clinical manifestations, diagnosis, evaluation, and management of scabies. Methods: A search was conducted using Pubmed with the built-in "Clinical Queries" tool. The search term "Scabies" was used. The categories of "epidemiology", "diagnosis", "therapy", "prevention" and "prognosis" had a limited scope for primary clinical studies. Meta-analyses, randomized controlled trials, clinical trials, observational studies, and reviews were included. Only papers published in the English language were included. A descriptive, narrative synthesis was provided of the retrieved articles. Results: Worldwide, scabies affects 200 to 300 million individuals annually. The average prevalence is estimated to be 5 to 10% in children of developing countries. Transmission usually occurs after close prolonged skin-to-skin contact. Classic scabies is characterized by an erythematous papular eruption, serpiginous burrows, and intense pruritus. Sites of predilection include the webs of the fingers, volar wrists, lateral aspects of fingers, extensor surfaces of elbows and knees, waist, navel, abdomen, buttocks, groins, and, genitals. A clinical diagnosis of classic scabies can be made on the basis of the history and clinical findings. Other clinical variants include crusted scabies, nodular scabies, and bullous scabies. Finding the mite, ova, or fecal pellets on microscopic examination of scrapings taken from skin lesions confirms the diagnosis of scabies infestation. For eradication of scabies mites, the drugs of choice are topical permethrin and oral ivermectin. Conclusion: Scabies is a highly contagious parasitic cutaneous disease that is stigmatising and debilitating. Increased awareness, accurate diagnosis, and prompt treatment are essential for the effective control of scabies and for the prevention of the spread of the disease.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Xiaowen Hu ◽  
Guofeng Zhang ◽  
Xianmeng Chen ◽  
Kai-Feng Xu

Abstract Objective To clarify the epidemiological and clinical features of Birt–Hogg–Dubé syndrome (BHDS) in Chinese patients. Methods We identified reports on Chinese patients with BHDS by searching the China Academic Journals Database, Wanfang Chinese Database, and PubMed databases, either in Chinese or English languages published from January 1, 2008 to December 31, 2020. Studies without sufficient clinical data were excluded and cases under 18 years old were excluded. Results Twenty papers were included and comprised 120 families with 221 cases. Most families with BHDS were reported from institutions in Beijing (66.7%) and Jiangsu Province (15.8%); 80.8% of cases were reported within the past five years. The average duration from clinical presentation to diagnosis was 9.6 years. The average age was 47.0 ± 13.9 years (range, 18–84 years) and the ratio of male to female was 1:1.6. The most common manifestations of BHDS were multiple pulmonary cysts (92.4%), spontaneous pneumothorax (71.0%), skin lesions (18.1%) and renal tumors (3.6%). Pulmonary cysts were predominantly distributed in the lower lobe on chest CT imaging. Family history of spontaneous pneumothorax was identified in 84.7% of the families and average number of pneumothoraxes was 1.8 (range, 1–6). The FLCN gene mutation c.1285dupC/delC in exon 11 was the most frequent mutation observed (17.4% of patients). The recurrence rate of pneumothorax after conservative treatment (including tube thoracostomy) was 29/41 (71%) while the pneumothorax recurred after surgical treatment (pulmonary bullectomy or pleurodesis) in only 4/37 (11%). Conclusions Although BHDS has been increasingly reported in the recent years, only minority of families were reported from institutions outside of Beijing and Jiangsu Province. The dominant clinical manifestations were pulmonary cysts associated with recurrent pneumothorax, while skin lesions and renal tumors were less commonly reported. Delayed diagnosis along with suboptimal management appear to represent critical challenges for Chinese patients with BHDS.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S428-S428
Author(s):  
Jennifer Jubulis ◽  
Amanda Goddard ◽  
Elizabeth Seiverling ◽  
Marc Kimball ◽  
Carol A McCarthy

Abstract Background Leishmaniasis has many clinical manifestations and treatment regimens, dependent on species and host. Old world leishmaniasis is found primarily in Africa and Asia, and is associated with visceral disease, while new world disease, seen primarily in Latin America, is more commonly mucocutaneous. We present a case series of pediatric African patients with New World cutaneous leishmaniasis (NWCL). Methods Data extraction was performed via chart review, analyzing travel history, clinical presentation, diagnosis, and management in children with cutaneous leishmaniasis presenting to the pediatric infectious diseases clinic in Portland, ME. Biopsy specimens were sent to the federal CDC for identification by PCR and culture. Results Five cases of NWCL were diagnosed in pediatric patients in Maine from November 2018 through February 2020. Median age of patients was 10 years (range 1.5-15 years). Four cases (80%) occurred in children from Angola or Democratic Republic of Congo, arriving in Maine via Central/South America, with one case in a child from Rwanda who arrived in Maine via Texas. Three patients had multiple skin lesions and two had isolated facial lesions. Leishmaniasis was not initially suspected resulting in median time to diagnosis of 5 months (range 1-7 months). Four patients were initially treated with antibacterials for cellulitis and one was treated with griseofulvin. After no improvement, patients underwent biopsy with 2 patients diagnosed with L panamensis, 1 with L braziliensis, 1 with mixed infection (L panamensis and L mexicana), and 1 with Leishmania species only. One patient was managed with surgical excision, 3 with ketoconazole, and 1 was observed off therapy. Four patients were referred to otolaryngology. All continue to be followed in infectious disease clinic. Conclusion We present five cases of new world cutaneous leishmaniasis in African pediatric patients arriving to Maine through Latin America or Texas. Patients were diagnosed with cellulitis, tinea corporis or atopic dermatitis initially, underscoring importance of high index of suspicion in migrant patients. Detailed travel history and epidemiologic knowledge is essential to diagnosis, as patients may present with illness not congruent with country of origin. Optimal therapy remains unclear. Disclosures All Authors: No reported disclosures


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