foodborne diseases

食源性疾病
  • 文章类型: Journal Article
    野猪,巴西有影响力的入侵物种,受到人口控制活动的影响,这通常包括使用猎犬。猎人通常食用野猪肉,也用来喂他们的狗,构成弓形虫感染人类和弓形虫和犬新孢子虫的风险。该研究旨在调查来自圣保罗的野猪(n=127)和猎犬(n=73)的感染率,南里奥格兰德州,和巴拉那州。我们采用了组织病理学,血清学(间接荧光抗体测试),和分子技术(终点聚合酶链反应)。野猪组织病理学切片(中枢神经系统,心,骨骼肌,肝脏,脾,脾肾,胃肠道,胰腺,淋巴结,和甲状腺)切片显示没有弓形虫或犬囊囊肿(0/47)。抗体抗T.在35/108(32.4%)和抗-N中检测到弓形虫。45/108(41.7%)野猪中的犬。只有2/18(11.1%)野猪组织匀浆样品在终点PCR中对弓形虫呈阳性。狩猎犬在62/73(85%)中显示出抗弓形虫的抗体,在31/73(42%)中显示出抗犬奈瑟菌的抗体。野猪和猎犬中存在抗弓形虫和犬奈瑟菌的抗体,以及在野猪中检测弓形虫DNA,表示这些寄生虫的循环。教育猎人预防这些食源性疾病,包括人畜共患病的风险,至关重要。
    The wild boar, an impactful invasive species in Brazil, is subject to population control activities, which often include the use of hunting dogs. Hunters commonly consume wild boar meat, which is also used to feed their dogs, posing a risk of Toxoplasma gondii infection for humans and both T. gondii and Neospora caninum for dogs. The study aimed to investigate the prevalence of infection in wild boars (n = 127) and hunting dogs (n = 73) from São Paulo, Rio Grande do Sul, and Paraná states. We employed histopathological, serological (indirect fluorescent antibody test), and molecular techniques (endpoint polymerase chain reaction). Histopathology slides of wild boar tissue (central nervous system, heart, skeletal muscle, liver, spleen, kidney, gastrointestinal tract, pancreas, lymph nodes, and thyroid) sections revealed no T. gondii or N. caninum cysts (0/47). Antibodies anti-T. gondii were detected in 35/108 (32.4%) and anti-N. caninum in 45/108 (41.7%) wild boars. Only 2/18 (11.1%) wild boar tissue homogenate samples tested positive for T. gondii on endpoint PCR. Hunting dogs showed antibodies against T. gondii in 62/73 (85%) and against N. caninum in 31/73 (42%). The presence of antibodies against T. gondii and N. caninum in wild boars and hunting dogs, along with T. gondii DNA detection in wild boars, indicates the circulation of these parasites. Educating hunters on preventing these foodborne diseases, including zoonotic risks, is crucial.
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  • 文章类型: Journal Article
    消费者可能会接触到许多食源性生物危害,这些危害会导致结果和发病率不同的疾病,因此,代表不同水平的公共卫生负担。为了帮助法国风险管理者对这些危害进行排名,并优先考虑食品安全行动,我们制定了三步走的方法。第一步是制定法国大陆健康关注的食源性危害清单。从335种人类致病生物制剂的初始列表中,“保留的危险”的最终清单包括24种危险,包括12种细菌(包括细菌毒素和代谢产物),3种病毒和9种寄生虫。第二步是收集数据以估计疾病负担(发病率,残疾调整寿命年)在两个时间段内通过食物与这些危害相关:2008-2013年和2014-2019年。根据所考虑的时期,不同危险的等级略有变化。第三步是使用ELECTREIII方法根据多标准决策支持模型对危险进行排名。使用了三个排名标准,其中两个反映了影响的严重程度(生命损失的年数和因残疾而损失的年数),一个反映了疾病的可能性(发病率)。多准则决策分析方法通过不同的权重集以及与数据相关的不确定性来考虑风险管理者的偏好。该方法和收集的数据可以估算法国大陆食源性生物危害的健康负担,并为卫生当局确定优先顺序清单。
    Consumers can be exposed to many foodborne biological hazards that cause diseases with varying outcomes and incidence and, therefore, represent different levels of public health burden. To help the French risk managers to rank these hazards and to prioritize food safety actions, we have developed a three-step approach. The first step was to develop a list of foodborne hazards of health concern in mainland France. From an initial list of 335 human pathogenic biological agents, the final list of \"retained hazards\" consists of 24 hazards, including 12 bacteria (including bacterial toxins and metabolites), 3 viruses and 9 parasites. The second step was to collect data to estimate the disease burden (incidence, Disability Adjusted Life Years) associated with these hazards through food during two time periods: 2008-2013 and 2014-2019. The ranks of the different hazards changed slightly according to the considered period. The third step was the ranking of hazards according to a multicriteria decision support model using the ELECTRE III method. Three ranking criteria were used, where two reflect the severity of the effects (Years of life lost and Years lost due to disability) and one reflects the likelihood (incidence) of the disease. The multicriteria decision analysis approach takes into account the preferences of the risk managers through different sets of weights and the uncertainties associated with the data. The method and the data collected allowed to estimate the health burden of foodborne biological hazards in mainland France and to define a prioritization list for the health authorities.
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  • 文章类型: Journal Article
    减少食源性疾病发病率是公共卫生的优先事项。本报告总结了2023年食源性疾病主动监测网络(FoodNet)的初步数据,并强调了提高FoodNet代表性的努力。2023年,国内获得性弯曲杆菌病的发病率,产志贺毒素的大肠杆菌感染,耶尔森氏菌病,弧菌病,环孢菌素病增加了,而李斯特菌病,沙门氏菌病,与2016-2018年的发病率相比,志贺氏菌病保持稳定,该基线用于跟踪实现联邦疾病减少目标的进展.在2023年期间,通过向FoodNet报告的独立于培养的诊断测试(CIDT)诊断出的感染的发生率和百分比继续增加。分离病例的百分比下降了,影响观察到的发病率趋势。因为DTs可以诊断以前未被发现的感染,在实现疾病减少目标方面缺乏进展可能反映了诊断方法的改变,而不是发病率的实际增加.需要持续监测,以监测不断变化的诊断方法对疾病趋势的影响,并且需要有针对性的预防工作来实现减少疾病的目标。2023年,FoodNet自2004年以来首次扩大了集水区。这种扩张提高了FoodNet集水区的代表性,FoodNet监测疾病发病率趋势的能力,以及FoodNet数据的泛化性。
    Reducing foodborne disease incidence is a public health priority. This report summarizes preliminary 2023 Foodborne Diseases Active Surveillance Network (FoodNet) data and highlights efforts to increase the representativeness of FoodNet. During 2023, incidences of domestically acquired campylobacteriosis, Shiga toxin-producing Escherichia coli infection, yersiniosis, vibriosis, and cyclosporiasis increased, whereas those of listeriosis, salmonellosis, and shigellosis remained stable compared with incidences during 2016-2018, the baseline used for tracking progress towards federal disease reduction goals. During 2023, the incidence and percentage of infections diagnosed by culture-independent diagnostic tests (CIDTs) reported to FoodNet continued to increase, and the percentage of cases that yielded an isolate decreased, affecting observed trends in incidence. Because CIDTs allow for diagnosis of infections that previously would have gone undetected, lack of progress toward disease reduction goals might reflect changing diagnostic practices rather than an actual increase in incidence. Continued surveillance is needed to monitor the impact of changing diagnostic practices on disease trends, and targeted prevention efforts are needed to meet disease reduction goals. During 2023, FoodNet expanded its catchment area for the first time since 2004. This expansion improved the representativeness of the FoodNet catchment area, the ability of FoodNet to monitor trends in disease incidence, and the generalizability of FoodNet data.
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  • 文章类型: News
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  • 文章类型: Journal Article
    食源性疾病,代表全球重大的食品安全和公共卫生挑战,在发病率方面没有很好的记录,特别是在中国以急性胃肠炎(AGI)为特征的病例。
    这项研究开发了一个金字塔模型来估计五种病原体的发病率,按性别和年龄分层。95%不确定度区间(UI)的每100,000人的估计发病率如下:诺如病毒,3,188.28(95%UI:2,518.03,7,296.96);沙门氏菌属。,1,295.59(95%UI:1,002.62,1,573.11);腹泻性大肠杆菌(DEC),782.62(95%UI:651.19,932.05);副溶血性弧菌,404.06(95%UI:342.19,468.93);志贺氏菌属。,26.73(95%UI:21.05,33.46)。
    这项研究阐明了不同性别和年龄组的发病率,从而确定有针对性的预防干预措施的优先人群,以减轻疾病负担。这些见解对于制定公共卫生政策和管理食品安全风险至关重要。
    UNASSIGNED: Foodborne diseases, representing significant food safety and public health challenges globally, are not well-documented in terms of incidence, particularly for cases characterized by acute gastroenteritis (AGI) in China.
    UNASSIGNED: This study developed a pyramid model to estimate the incidence of five pathogens, stratified by gender and age. The estimated incidences per 100,000 people with 95% uncertainty intervals (UI) are as follows: Norovirus, 3,188.28 (95% UI: 2,518.03, 7,296.96); Salmonella spp., 1,295.59 (95% UI: 1,002.62, 1,573.11); diarrheagenic E. coli (DEC), 782.62 (95% UI: 651.19, 932.05); Vibrio parahaemolyticus, 404.06 (95% UI: 342.19, 468.93); and Shigella spp., 26.73 (95% UI: 21.05, 33.46).
    UNASSIGNED: This study elucidates the incidence rates across various gender and age groups, thereby identifying priority populations for targeted preventive interventions aimed at reducing disease burden. These insights are crucial for the development of public health policies and management of food safety risks.
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  • 文章类型: Journal Article
    作为必需食物储存的医院冰箱可能是食物污染的重要来源。我们旨在调查德黑兰三台医院冰箱中病原菌的频率和抗生素敏感性。
    这项研究是对254个样品进行的,从三家医院各病房的60台冰箱中收集,A,B,C,在德黑兰,伊朗从2020年到2021年。在分离和鉴定分离株之后,确定了抗生素敏感性模式.基于PCR的测定用于筛选抗性分离株的抗生素抗性基因的存在。
    从收集的254个样本中,236份样品(92.9%)被污染。大多数菌株是从清洁不良的冰箱中分离出来的,非关键病房的温度高于8°C。大多数细菌属于肠杆菌科(68.8%),其次是葡萄球菌(11.9%),和肠球菌(10.6%),而非肠杆菌科分离株的频率为8.9%。耐药菌最高的是超广谱β-内酰胺酶(ESBL)9.7%,耐万古霉素肠球菌(VRE)5.3%,耐甲氧西林表皮葡萄球菌(MRSE)0.4%,耐甲氧西林金黄色葡萄球菌(MRSA)0.4%,分别。BlaOXA-48BlaCTX,bclaTEM基因仅在10%的肠杆菌科分离物中发现。在所有非肠杆菌科分离物中都发现了blaOXA-51基因。在耐药肠球菌和葡萄球菌中检测到vanA和mecA基因。
    我们的研究结果表明,交叉污染和抗生素抗性分离株的出现是医院冰箱来源的潜在健康威胁。加强医院冰箱的清洁是预防食源性疾病和医院感染的必要。
    UNASSIGNED: Hospital refrigerators as essential food storage can be important source of food contamination. We aimed to investigate the frequency and antibiotic susceptibility of the pathogenic bacteria in three hospital refrigerators in Tehran.
    UNASSIGNED: This study was performed on 254 samples, collected from 60 refrigerators of the various wards of three hospitals, A, B, and C, in Tehran, Iran from 2020 to 2021. Following isolation and identification of isolates, the antibiotic susceptibility pattern was determined. PCR-based assays were used to screen the presence of antibiotic resistance genes of resistant isolates.
    UNASSIGNED: From 254 collected samples, 236 samples (92.9%) were contaminated. Most strains were isolated from refrigerators with poorly cleaned, temperatures above 8 °C in non-critical wards. Most bacteria belonging to Enterobacteriaceae (68.8%), followed by Staphylococcus (11.9%), and Enterococcus (10.6%), while the frequency of non-Enterobacteriaceae isolates was 8.9%. The highest antibiotic resistant bacteria were in extended spectrum beta-lactamase (ESBL) 9.7%, vancomycin-resistant enterococci (VRE) 5.3%, methicillin-resistant S. epidermidis (MRSE) 0.4%, and methicillin-resistant S. aureus (MRSA) 0.4%, respectively. The bla OXA-48, bla CTX, and bcla TEM genes were found only in 10% of Enterobacteriaceae isolates. The bla OXA-51 gene was found in all non-Enterobacteriaceae isolates. The vanA and mecA genes were detected in antibiotic-resistant Enterococcus and Staphylococcus.
    UNASSIGNED: Our findings suggests major concern about cross-contamination and the emergence of antibiotic-resistant isolates as a potential health threat with hospital refrigerators origin. More attention to hospital refrigerators cleaning is necessary to prevent foodborne diseases and nosocomial infections.
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  • 文章类型: Journal Article
    在2023年,两次死亡归因于摄入未煮熟的羊肚菌(羊肚菌。)在美国有报道;两名患者都出现了严重的胃肠道症状。羊肚菌引起的胃肠道毒性是公认的,但直到2023年还没有死亡报告,这表明羊肚菌中毒的严重程度有可能发生转变.
    使用中毒严重程度评分,我们分析了2010年至2020年法国国家中毒数据库中记录的羊肚菌摄入症状病例的严重程度.
    我们发现了446例暴露病例,其中羊肚菌是唯一涉及的蘑菇物种。其中,分别有83.6%和53.3%出现胃肠及神经方面的症状,分别。八名患者因严重的胃肠道症状而出现休克,导致两人死亡。
    摄入莫雷尔可导致严重的并发症。就像在美国一样,本研究报告的死亡归因于进口栽培羊肚菌。的转变,自2006年以来,种植羊肚菌的销售占主导地位,可能在报告严重的羊肚菌中毒病例中发挥了作用。
    关于羊肚菌严重中毒的报告强调了谨慎消费的必要性,特别是生的或未煮熟的制剂。新出现的并发症预示着毒性的潜在变化。监控和意识是降低食用羊肚菌风险的关键。
    UNASSIGNED: In 2023, two fatalities attributed to the ingestion of uncooked morels (Morchella spp.) were reported in the United States; both patients developed severe gastrointestinal symptoms. Morel-induced gastrointestinal toxicity is well recognized, but no deaths had been reported until 2023, suggesting a potential shift in the severity of morel poisoning.
    UNASSIGNED: Using the Poisoning Severity Score, we analyzed the severity of symptomatic cases of morel ingestion recorded in the French National Database of Poisonings from 2010 to 2020.
    UNASSIGNED: We found 446 cases of exposure in which morels were the sole mushroom species involved. Of these, 83.6 per cent and 53.3 per cent developed gastrointestinal and neurological symptoms, respectively. Eight patients developed shock attributed to severe gastrointestinal symptoms, resulting in two deaths.
    UNASSIGNED: Morel ingestion can lead to severe complications. As in the United States, the deaths reported in this study were attributed to imported cultivated morels. The shift, since 2006, towards a predominance of cultivated over wild morel sales may have played a role in the reporting of severe cases of morel poisoning.
    UNASSIGNED: Reports of severe morel poisoning highlight the need for cautious consumption, particularly of raw or undercooked preparations. Emerging complications signal potential changes in toxicity. Surveillance and awareness are key to reducing the risks of consuming morels.
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  • 文章类型: Journal Article
    食源性病毒仍然是人类胃肠炎的最大原因,也是全球食源性疾病的最大贡献者之一。目前,定量反转录PCR(qRT-PCR)或实时qPCR是常用的食源性病毒定量检测方法,但是这些方法有几个缺点,例如依赖于定量的标准曲线和来自本体反应的背景噪声。ddPCR使用油-水乳液形成多个液滴,其将少量病毒遗传物质(DNA或RNA)分配到每个液滴中。然后这些液滴经历扩增循环并使用泊松分布进行分析。这允许在不需要标准曲线的情况下进行绝对定量,这使得ddPCR成为监测食源性病毒的精确工具。在这里,我们描述了使用从各种基质中分离的RNA检测食源性病毒的过程。可以通过ddPCR在单个板上分析多达96个样品,包括阳性和阴性对照。
    Foodborne viruses remain the largest cause of human gastroenteritis and one of the largest contributors to foodborne illnesses worldwide. Currently, quantitative reverse transcription PCR (qRT-PCR) or real-time qPCR are the detection methods commonly used for quantification of foodborne viruses, but those methods have several disadvantages, such as relying on standard curves for quantification and the background noise from a bulk reaction. ddPCR uses an oil-water emulsion to form multiple droplets that partition small amounts of viral genetic material (DNA or RNA) into each of the droplets. These droplets then undergo amplification cycles and are analyzed using Poisson distributions. This allows for absolute quantification without the need for a standard curve, which makes ddPCR a precise tool in surveillance of foodborne viruses. Herein, we describe the process of detecting foodborne viruses using RNA isolated from various matrices. Up to 96 samples including the positive and negative controls can be analyzed on a single plate by ddPCR.
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  • 文章类型: Journal Article
    预切的新鲜水果和蔬菜因其方便而高度吸引消费者,然而,因为它们在加工过程中极易受到微生物污染,食源性疾病对公众健康的潜在风险不容忽视。这项研究旨在评估患病率,主要食源性病原体的抗生素敏感性和分子特征(单核细胞增生李斯特菌,大肠杆菌,金黄色葡萄球菌和沙门氏菌)从北京鲜切水果和蔬菜中分离,中国。从326个样品中分离出86个污渍,金黄色葡萄球菌患病率最高(15.38%),其次是大肠杆菌(9.23%)和单核细胞增生李斯特菌(1.85%),而没有检测到沙门氏菌。食物类型的流行表明,果盘和混合蔬菜更容易受到病原体的污染。98%的金黄色葡萄球菌对至少一种抗生素具有抗性,对青霉素(90%)和苯唑西林(48%)的耐药率较高。在25个大肠杆菌分离物中,其中57.67%呈现多药耐药,与甲氧苄啶/磺胺甲恶唑(66.67%)和氨苄西林(63.33%)共同耐药。在35株金黄色葡萄球菌中鉴定出9种序列类型(STs)和8种spa类型,以ST398-T34为主(42.86%)。此外,对25个大肠杆菌分离株的分析显示出显著的异质性,以22种血清型和18种STs为特征。基因组分析显示,金黄色葡萄球菌和大肠杆菌中存在5个和44个不同的抗生素抗性基因(ARGs),分别。在大肠杆菌分离株中鉴定出7个喹诺酮耐药决定区(QRDR)突变,其中GyrA(S83L)是最常见的检测。所有金黄色葡萄球菌和大肠杆菌分离物都具有毒力基因。金黄色葡萄球菌和大肠杆菌中的ARGs与质粒呈显著正相关。此外,一种单增李斯特菌分离物,来自西瓜样本的ST101和血清群IIc,携带毒力基因(inlA和inlB)和LIPI-1致病岛(prfA,plcA,hly和acta),这对消费者的健康构成了潜在的风险。这项研究的重点是与食源性疾病相关的鲜切水果和蔬菜的潜在微生物风险,提高对即食食品风险评估的科学认识。
    Pre-cut fresh fruits and vegetables are highly appealing to consumers for their convenience, however, as they are highly susceptible to microbial contamination in processing, the potential risks of foodborne illnesses to public health are not negligible. This study aimed to assess the prevalence, antibiotic susceptibility and molecular characteristics of major foodborne pathogens (Listeria monocytogenes, Escherichia coli, Staphylococcus aureus and Salmonella) isolated from fresh-cut fruits and vegetables in Beijing, China. 86 stains were isolated from 326 samples, with S. aureus being the highest prevalence (15.38 %), followed by E. coli (9.23 %) and L. monocytogenes (1.85 %), while no Salmonella was detected. The prevalence by type of food indicated that fruit trays and mixed vegetables were more susceptible to contamination by pathogens. 98 % of S. aureus were resistant to at least of one antibiotic, and showed a high resistance rate to benzylpenicillin (90 %) and oxacillin (48 %). Among 25 E. coli isolates, 57.67 % of which exhibited multi-drug resistance, with common resist to trimethoprim/sulfamethoxazole (66.67 %) and ampicillin (63.33 %). A total of 9 sequence types (STs) and 8 spa types were identified in 35 S. aureus isolates, with ST398-t34 being the predominant type (42.86 %). Additionally, analysis of 25 E. coli isolates demonstrated significant heterogeneity, characterized by 22 serotypes and 18 STs. Genomic analysis revealed that 5 and 44 distinct antibiotic resistance genes (ARGs) in S. aureus and E. coli, respectively. Seven quinolone resistance-determining regions (QRDRs) mutations were identified in E. coli isolates, of which GyrA (S83L) was the most frequently detected. All the S. aureus and E. coli isolates harbored virulence genes. ARGs in S. aureus and E. coli showed a significant positive correlation with plasmids. Furthermore, one L. monocytogenes isolate, which was ST101 and serogroupIIc from watermelon sample, harbored virulence genes (inlA and inlB) and LIPI-1 pathogenic islands (prfA, plcA, hly and actA), which posed potential risks for consumer\'s health. This study focused on the potential microbial risk of fresh-cut fruits and vegetables associated with foodborne diseases, improving the scientific understanding towards risk assessment related to ready-to-eat foods.
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  • 文章类型: Journal Article
    单核细胞增生李斯特菌,一种主要的食源性病原体,常见于牛奶和乳制品中。本研究旨在使用基于PubMed,Embase,WebofScience,和Scopus数据库。本荟萃分析共纳入173项研究。供应链环境中的集合患病率为8.69%(95%置信区间[CI]:5.30%-12.78%),高于乳制品(4.60%,95%CI:1.72%-8.60%)和奶制品(2.93%,95%CI:2.14%-3.82%)。亚组分析显示,原奶中单核细胞增生李斯特菌的患病率(3.44%,95%CI:2.61%-4.28%)显著高于巴氏杀菌乳(0.60%,95%CI:0.00%-2.06%)。在北美观察到牛奶和乳制品中单核细胞增生李斯特菌的最高患病率(5.27%,95%CI:2.19%-8.35%)和南美(13.54%,95%CI:3.71%-23.37%)。此外,使用培养和分子方法的研究(5.17%,95%CI:2.29%-8.06%)患病率高于其他检测方法。血清组1/2a和3a(45.34%,95%CI:28.74%-62.37%),血清组1/2b和3b(14.23%,95%CI:6.05%-24.24%),和血清组4b/4e(13.71%,95%CI:6.18%-22.83%)在这些研究中占主导地位。这项研究的结果提供了更好地了解牛奶和乳制品供应链中单核细胞增生李斯特菌的患病率,并提出了潜在的食源性病原体负担。
    Listeria monocytogenes, one of the main foodborne pathogens, is commonly found in milk and dairy products. This study aimed to estimate the presence of L. monocytogenes in milk and dairy product supply chains using a meta-analysis based on PubMed, Embase, Web of Science, and Scopus databases. A total of 173 studies were included in this meta-analysis. The pooled prevalence in the supply chain environment was 8.69% (95% confidence interval [CI]: 5.30%-12.78%), which was higher than that in dairy products (4.60%, 95% CI: 1.72%-8.60%) and milk products (2.93%, 95% CI: 2.14%-3.82%). Subgroup analysis showed that L. monocytogenes prevalence in raw milk (3.44%, 95% CI: 2.61%-4.28%) was significantly higher than in pasteurized milk (0.60%, 95% CI: 0.00%-2.06%). The highest prevalence of L. monocytogenes in milk and dairy products was observed in North America (5.27%, 95% CI: 2.19%-8.35%) and South America (13.54%, 95% CI: 3.71%-23.37%). In addition, studies using culture and molecular methods (5.17%, 95% CI: 2.29%-8.06%) had higher prevalence than other detection methods. Serogroup 1/2a and 3a (45.34%, 95% CI: 28.74%-62.37%), serogroup 1/2b and 3b (14.23%, 95% CI: 6.05%-24.24%), and serogroup 4b/4e (13.71%, 95% CI: 6.18%-22.83%) were dominant in these studies. The results of this study provide a better understanding of the prevalence of L. monocytogenes in milk and dairy product supply chains and suggest a potential foodborne pathogen burden.
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