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1.
J Crohns Colitis ; 17(1): 83-91, 2023 Jan 27.
Article in English | MEDLINE | ID: mdl-35913456

ABSTRACT

BACKGROUND AND AIMS: Clinical trials and real-life studies with ustekinumab in Crohn's disease [CD] have revealed a good efficacy and safety profile. However, these data are scarcely available in elderly patients. Therefore, we aim to assess the effectiveness and safety of ustekinumab in elderly patients with CD. METHODS: Elderly patients [>60 years old] from the prospectively maintained ENEIDA registry treated with ustekinumab due to CD were included. Every patient was matched with two controls under 60 years of age, according to anti-tumour necrosis factor use and smoking habit. Values for the Harvey-Bradshaw Index [HBI], endoscopic activity, C-reactive protein [CRP] and faecal calprotectin [FC] were recorded at baseline and at weeks 16, 32 and 54. RESULTS: In total, 648 patients were included, 212 of whom were elderly. Effectiveness was similar between young and elderly patients during the follow-up. Steroid-free remission was similar at week 16 [54.6 vs 51.4%, p = 0.20], 32 [53.0% vs 54.5%, p = 0.26] and 54 [57.8% vs 51.1%, p = 0.21]. Persistence of ustekinumab as maintenance therapy was similar in both age groups [log-rank test; p = 0.91]. There was no difference in the rate of adverse effects [14.2% vs 11.2%, p = 0.350], including severe infections [7.1% vs 7.3%, p = 1.00], except for the occurrence of de novo neoplasms, which was higher in older patients [0.7% vs 4.3%, p = 0.003]. CONCLUSIONS: Ustekinumab is as effective in elderly patients with CD as it is in non-elderly patients. The safety profile also seems to be similar except for a higher rate of de novo neoplasms, probably related to the age of the elderly patients.


Subject(s)
Crohn Disease , Ustekinumab , Humans , Middle Aged , Aged , Ustekinumab/adverse effects , Crohn Disease/pathology , Remission Induction , Endoscopy , Registries , Treatment Outcome , Retrospective Studies
2.
J Clin Med ; 11(24)2022 Dec 19.
Article in English | MEDLINE | ID: mdl-36556155

ABSTRACT

(1) Scant information is available concerning the characteristics that may favour the acquisition of COVID-19 in patients with inflammatory bowel disease (IBD). Therefore, the aim of this study was to assess these differences between infected and noninfected patients with IBD. (2) This nationwide case−control study evaluated patients with inflammatory bowel disease with COVID-19 (cases) and without COVID-19 (controls) during the period March−July 2020 included in the ENEIDA of GETECCU. (3) A total of 496 cases and 964 controls from 73 Spanish centres were included. No differences were found in the basal characteristics between cases and controls. Cases had higher comorbidity Charlson scores (24% vs. 19%; p = 0.02) and occupational risk (28% vs. 10.5%; p < 0.0001) more frequently than did controls. Lockdown was the only protective measure against COVID-19 (50% vs. 70%; p < 0.0001). No differences were found in the use of systemic steroids, immunosuppressants or biologics between cases and controls. Cases were more often treated with 5-aminosalicylates (42% vs. 34%; p = 0.003). Having a moderate Charlson score (OR: 2.7; 95%CI: 1.3−5.9), occupational risk (OR: 2.9; 95%CI: 1.8−4.4) and the use of 5-aminosalicylates (OR: 1.7; 95%CI: 1.2−2.5) were factors for COVID-19. The strict lockdown was the only protective factor (OR: 0.1; 95%CI: 0.09−0.2). (4) Comorbidities and occupational exposure are the most relevant factors for COVID-19 in patients with IBD. The risk of COVID-19 seems not to be increased by immunosuppressants or biologics, with a potential effect of 5-aminosalicylates, which should be investigated further and interpreted with caution.

4.
J Clin Med ; 11(2)2022 Jan 14.
Article in English | MEDLINE | ID: mdl-35054116

ABSTRACT

We aim to describe the incidence and source of contagion of COVID-19 in patients with IBD, as well as the risk factors for a severe course and long-term sequelae. This is a prospective observational study of IBD and COVID-19 included in the ENEIDA registry (53,682 from 73 centres) between March-July 2020 followed-up for 12 months. Results were compared with data of the general population (National Centre of Epidemiology and Catalonia). A total of 482 patients with COVID-19 were identified. Twenty-eight percent were infected in the work environment, and 48% were infected by intrafamilial transmission, despite having good adherence to lockdown. Thirty-five percent required hospitalization, 7.9% had severe COVID-19 and 3.7% died. Similar data were reported in the general population (hospitalisation 19.5%, ICU 2.1% and mortality 4.6%). Factors related to death and severe COVID-19 were being aged ≥ 60 years (OR 7.1, 95% CI: 1.8-27 and 4.5, 95% CI: 1.3-15.9), while having ≥2 comorbidities increased mortality (OR 3.9, 95% CI: 1.3-11.6). None of the drugs for IBD were related to severe COVID-19. Immunosuppression was definitively stopped in 1% of patients at 12 months. The prognosis of COVID-19 in IBD, even in immunosuppressed patients, is similar to that in the general population. Thus, there is no need for more strict protection measures in IBD.

5.
Gastroenterol Hepatol ; 45(3): 165-176, 2022 Mar.
Article in English, Spanish | MEDLINE | ID: mdl-34051313

ABSTRACT

OBJECTIVE: No studies evaluating the rapidity of response to biological therapies are available for Crohn's disease (CD). The aim of this study was to evaluate rapidity of onset of clinical response and impact on quality of life (QoL) of adalimumab therapy in adult anti-TNF-naïve patients with moderately-to-severely active CD. PATIENTS AND METHODS: RAPIDA was an open-label, single-arm, prospective, multicenter clinical trial. Adult patients with moderately-to-severely active luminal CD, anti-TNF-naïve, and unresponsive to conventional therapy were treated with adalimumab. Clinical disease activity, QoL and inflammatory biomarkers were measured at day 4, and weeks 1, 2, 4, and 12 after treatment initiation. RESULTS: Eighty-six patients were included in the intention-to-treat (ITT) analyses. Clinical disease activity was reduced from a median of 9.0 points to 6.0 points at day 4. Clinical response (≥ 3-point reduction in the Harvey-Bradshaw Index, HBI) was achieved by 61.6% (d4) and 75.6% (w1) of patients in the ITT population (median 2.5 days) and with non-responder imputation (NRI), by 55.8% and 53.4%, respectively. The proportion of patients in clinical remission (HBI<5) at weeks 2 and 4 in the ITT population was 54.7% and 62.8%, respectively (median 7.0 days), and 38.4% and 45.3% in the NRI population. All QoL scores significantly improved and inflammatory biomarkers significantly decreased from day 4 onwards (p<0.0001). CONCLUSION: Rapid clinical response and remission, improvement in QoL and fatigue, and a reduction of inflammatory biomarkers were achieved with adalimumab as early as day 4 in adult anti-TNF-naïve patients with moderately-to-severely active CD.


Subject(s)
Adalimumab/therapeutic use , Crohn Disease/drug therapy , Quality of Life , Tumor Necrosis Factor Inhibitors/therapeutic use , Adult , Aged , Biomarkers/blood , Crohn Disease/blood , Fatigue/drug therapy , Female , Humans , Intention to Treat Analysis , Male , Middle Aged , Prospective Studies , Remission Induction , Severity of Illness Index , Spain , Time Factors , Treatment Outcome , Young Adult
6.
J Clin Med ; 10(13)2021 06 29.
Article in English | MEDLINE | ID: mdl-34209680

ABSTRACT

(1) Aims: To assess the incidence of inflammatory bowel disease (IBD) in Spain, to describe the main epidemiological and clinical characteristics at diagnosis and the evolution of the disease, and to explore the use of drug treatments. (2) Methods: Prospective, population-based nationwide registry. Adult patients diagnosed with IBD-Crohn's disease (CD), ulcerative colitis (UC) or IBD unclassified (IBD-U)-during 2017 in Spain were included and were followed-up for 1 year. (3) Results: We identified 3611 incident cases of IBD diagnosed during 2017 in 108 hospitals covering over 22 million inhabitants. The overall incidence (cases/100,000 person-years) was 16 for IBD, 7.5 for CD, 8 for UC, and 0.5 for IBD-U; 53% of patients were male and median age was 43 years (interquartile range = 31-56 years). During a median 12-month follow-up, 34% of patients were treated with systemic steroids, 25% with immunomodulators, 15% with biologics and 5.6% underwent surgery. The percentage of patients under these treatments was significantly higher in CD than UC and IBD-U. Use of systemic steroids and biologics was significantly higher in hospitals with high resources. In total, 28% of patients were hospitalized (35% CD and 22% UC patients, p < 0.01). (4) Conclusion: The incidence of IBD in Spain is rather high and similar to that reported in Northern Europe. IBD patients require substantial therapeutic resources, which are greater in CD and in hospitals with high resources, and much higher than previously reported. One third of patients are hospitalized in the first year after diagnosis and a relevant proportion undergo surgery.

7.
J Crohns Colitis ; 15(11): 1846-1851, 2021 Nov 08.
Article in English | MEDLINE | ID: mdl-33860795

ABSTRACT

BACKGROUND AND AIMS: The development programm UNIFI has shown promising results of ustekinumab in ulcerative colitis [UC] treatment which should be confirmed in clinical practice. We aimed to evaluate the durability, effectiveness, and safety of ustekinumab in UC in real life. METHODS: Patients included in the prospectively maintained ENEIDA registry, who received at least one intravenous dose of ustekinumab due to active UC [Partial Mayo Score [PMS]>2], were included. Clinical activity and effectiveness were defined based on PMS. Short-term response was assessed at Week 16. RESULTS: A total of 95 patients were included. At Week 16, 53% of patients had response [including 35% of patients in remission]. In the multivariate analysis, elevated serum C-reactive protein was the only variable significantly associated with lower likelihood of achieving remission. Remission was achieved in 39% and 33% of patients at Weeks 24 and 52, respectively; 36% of patients discontinued the treatment with ustekinumab during a median follow-up of 31 weeks. The probability of maintaining ustekinumab treatment was 87% at Week 16, 63% at Week 56, and 59% at Week 72; primary failure was the main reason for ustekinumab discontinuation. No variable was associated with risk of discontinuation. Three patients reported adverse events; one of them had a fatal severe SARS-CoV-2 infection. CONCLUSIONS: Ustekinumab is effective in both the short and the long term in real life, even in a highly refractory cohort. Higher inflammatory burden at baseline correlated with lower probability of achieving remission. Safety was consistent with the known profile of ustekinumab.


Subject(s)
Colitis, Ulcerative/drug therapy , Ustekinumab/therapeutic use , Female , Humans , Infusions, Intravenous , Male , Middle Aged , Prospective Studies , Registries , Remission Induction , Ustekinumab/administration & dosage
8.
Clin Transl Gastroenterol ; 11(8): e00218, 2020 08.
Article in English | MEDLINE | ID: mdl-32955190

ABSTRACT

INTRODUCTION: Patients with Crohn's disease experiencing endoscopic postoperative recurrence (POR) may benefit from antitumor necrosis factor (TNF) agents but scarce data on this are available. Our aim was to assess the efficacy of anti-TNF in improving mucosal lesions in patients with endoscopic POR. METHODS: Multicenter, retrospective, study of patients with Crohn's disease who underwent therapy with anti-TNF agents for endoscopic POR (Rutgeerts score > i1). Treatment outcomes were assessed by the findings in the last ileocolonoscopy performed after anti-TNF therapy was initiated. Endoscopic improvement and remission were defined as any reduction in the baseline Rutgeerts score and by a Rutgeerts score < i2, respectively. RESULTS: A total of 179 patients were included, 83 were treated with infliximab and 96 with adalimumab. Median time on anti-TNF therapy at the last endoscopic assessment was 31 months (interquartile range, 13-54). Endoscopic improvement was observed in 61%, including 42% who achieved endoscopic remission. Concomitant use of thiopurines and treatment with infliximab were associated with endoscopic improvement (odds ratio [OR] 2.15, 95% confidence interval [CI] 1.04-4.46; P = 0.03, and OR 2.34, 95% CI 1.18-4.62; P < 0.01, respectively) and endoscopic remission (OR 3.16, 95% CI 1.65-6.05; P < 0.01, and OR 2.01, 95% CI 1.05-3.88; P = 0.04, respectively) in the multivariable logistic regression analysis. These results were confirmed in a propensity-matched score analysis. DISCUSSION: In patients with endoscopic POR, anti-TNF agents improve mucosal lesions in almost two-thirds of the patients. In this setting, concomitant use of thiopurines and use of infliximab seem to be more effective in improving mucosal lesions.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Crohn Disease/drug therapy , Immunosuppressive Agents/therapeutic use , Tumor Necrosis Factor-alpha/antagonists & inhibitors , Adalimumab/pharmacology , Adalimumab/therapeutic use , Adolescent , Adult , Anti-Inflammatory Agents/pharmacology , Colonoscopy , Crohn Disease/diagnosis , Crohn Disease/immunology , Crohn Disease/pathology , Drug Therapy, Combination/methods , Female , Humans , Immunosuppressive Agents/pharmacology , Infliximab/pharmacology , Infliximab/therapeutic use , Intestinal Mucosa/diagnostic imaging , Intestinal Mucosa/drug effects , Male , Mercaptopurine/pharmacology , Mercaptopurine/therapeutic use , Propensity Score , Recurrence , Retrospective Studies , Treatment Outcome , Young Adult
9.
Inflamm Bowel Dis ; 25(11): 1862-1870, 2019 10 18.
Article in English | MEDLINE | ID: mdl-31006801

ABSTRACT

BACKGROUND: Anti-tumor necrosis factor agents (anti-TNFs) are efficacious at preventing the postoperative recurrence (POR) of Crohn disease, as demonstrated in 2 randomized controlled trials. However, real-life data for infliximab or adalimumab in this setting are scarce. Our aim was to assess both the efficiency of anti-TNFs at preventing early POR of Crohn disease in clinical practice and the associated risk factors for POR. METHODS: Patients in whom anti-TNFs were prescribed for the prevention of POR within 3 months after ileocolonic resection and who had an endoscopic assessment within 18 months were identified from the ENEIDA registry. Clinical and endoscopic features were collected within 18 months after surgery. RESULTS: In total, 152 patients were included (55 treated with infliximab, 97 with adalimumab, and 39% with concomitant immunosuppressants). Anti-TNF treatment was started after a median time of 29 days (IQR 13-44) after surgery. Eighty-two percent of patients had at least one risk factor for POR, and 82% had been exposed to anti-TNFs before the index surgery. Overall, 34% had endoscopic POR (as defined using a Rutgeerts endoscopic score > i1); 14% had advanced endoscopic POR (>i2); and 20% had clinical POR, with no differences between infliximab and adalimumab. In the multivariate analysis, only perianal disease (odds ratio 2.73, 95% confidence interval [CI] 1.26-5.91) and rectal involvement (odds ratio 2.79, 95% CI 1.09-7.14) were independent predictors of endoscopic POR. CONCLUSIONS: In clinical practice, anti-TNFs for the prevention of POR of Crohn disease are frequently used in patients experienced with anti-TNFs and with concomitant immunosuppressants. The efficacy of infliximab and adalimumab for POR prevention is similar and in accordance with the results obtained in randomized controlled trials.


Subject(s)
Adalimumab/therapeutic use , Crohn Disease/drug therapy , Crohn Disease/prevention & control , Infliximab/therapeutic use , Adult , Colonoscopy , Crohn Disease/surgery , Female , Humans , Immunosuppressive Agents/therapeutic use , Intestinal Mucosa/pathology , Logistic Models , Male , Middle Aged , Multivariate Analysis , Recurrence , Registries , Retrospective Studies , Secondary Prevention , Spain , Tumor Necrosis Factor-alpha/antagonists & inhibitors
10.
Scand J Gastroenterol ; 48(4): 427-32, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23477328

ABSTRACT

AIM: The aim was to assess the impact of inflammatory bowel disease (IBD) and its treatment on fertility, pregnancy outcomes, and breastfeeding. IBD is a chronic inflammatory condition that is usually diagnosed in young adulthood. Patients are often concerned about fertility and pregnancy outcomes. METHODS: A structured questionnaire was posted to 850 adults with IBD followed-up on in a single center. RESULTS: A total of 503 patients (59%) with a median age of 40 years and equally distributed for gender and type of IBD returned the questionnaire. Overall, 71% of the patients had a total of 659 children, 36% of whom were born after the diagnosis. A total of 132 miscarriages were registered, 46% after the diagnosis of IBD. Most childless patients stated that having no children was a personal decision, and only 6% of them were evaluated and diagnosed with infertility. Pregnancies after diagnosis of IBD had a higher probability of caesarean section and preterm delivery. IBD-related drug therapy was discontinued in 16% of the pregnancies, mainly as a result of medical advice. Babies born after the diagnosis of IBD were less often breastfed. CONCLUSIONS: The infertility rate among IBD patients seems to be similar to that seen in the general population. However, a large proportion of patients chose to remain childless. Vaginal delivery and breastfeeding are less likely to occur in babies born after the diagnosis. Suitable information for patients to avoid unwarranted concerns about adverse reproductive outcomes, as well as improved obstetrical and perinatal management, still seems to be necessary.


Subject(s)
Breast Feeding , Fertility , Inflammatory Bowel Diseases/complications , Abortion, Spontaneous/chemically induced , Adult , Aged , Aged, 80 and over , Cesarean Section , Cohort Studies , Colitis, Ulcerative/complications , Crohn Disease/complications , Drug Therapy, Combination , Female , Fertility/drug effects , Follow-Up Studies , Gastrointestinal Agents/administration & dosage , Gastrointestinal Agents/adverse effects , Health Care Surveys , Humans , Immunosuppressive Agents/administration & dosage , Immunosuppressive Agents/adverse effects , Infant, Newborn , Inflammatory Bowel Diseases/diagnosis , Inflammatory Bowel Diseases/drug therapy , Male , Middle Aged , Pregnancy , Pregnancy Outcome , Risk Factors , Surveys and Questionnaires , Young Adult
11.
Digestion ; 80(1): 25-9, 2009.
Article in English | MEDLINE | ID: mdl-19439968

ABSTRACT

BACKGROUND: Intestinal infections have been claimed to precipitate or aggravate flares of inflammatory bowel disease (IBD). The reported incidence of such infections among IBD patients varies between 9 and 13%, but only a few prospective studies have been conducted. AIMS: To evaluate the incidence of intestinal infections by enteropathogens in patients with active IBD, their impact on clinical outcome, and to identify associated risk factors. PATIENTS AND METHODS: Consecutive patients admitted because of a relapse or suspected onset of IBD were prospectively included. At admittance, stool samples for culture, examination for intestinal parasites, and cytotoxin assay for Clostridium difficile were collected. Baseline clinical characteristics, potential risk factors for gastrointestinal infections, and clinical outcome were recorded. RESULTS: Ninety-nine episodes were included. Six intestinal infections were diagnosed in 6 patients (5 ulcerative colitis, 1 ileocolonic Crohn's disease), Campylobacter jejuni being the most frequent isolated microbe (n = 5). None of the patients with intestinal infection needed surgery, but two of them required second-line therapies. CONCLUSIONS: Gastrointestinal infections among IBD patients do not exceed 10% and occur mostly in patients with extensive involvement of the colon. Infection by enteropathogenic bacteria does not appear to be associated with a poorer clinical outcome of the IBD flare.


Subject(s)
Blastocystis Infections/complications , Campylobacter Infections/complications , Inflammatory Bowel Diseases/complications , Adult , Aged , Blastocystis Infections/epidemiology , Campylobacter Infections/epidemiology , Cross-Sectional Studies , Female , Humans , Incidence , Inflammatory Bowel Diseases/epidemiology , Male , Middle Aged , Prospective Studies , Risk Factors , Spain/epidemiology , Young Adult
12.
Gastroenterol. hepatol. (Ed. impr.) ; 30(10): 580-582, dic. 2007.
Article in En | IBECS | ID: ibc-62474

ABSTRACT

Pernicious anemia is the most common cause of vitamin B12 deficiency in adults. This entity is associated with chronic atrophic gastritis. We report a case of pernicious anaemia in triplets. We also report a fourth case of cobalamin deficiency with antibodies against intrinsic factor and anti parietal cell antigen negative antibodies in a sibling. The present article reviews the pediatric presentation of pernicious anemia and highlights the possible existence of familial aggregation. Furthermore, the need for systematic familial screening and the usefulness of an endoscopic follow-up program in patients with pernicious anemia are evaluated


La anemia perniciosa es la causa más frecuente de déficit de vitamina B12 en adultos. Esta entidad se ha asociado con la gastritis crónica atrófica. En este trabajo se describe la existencia de anemia perniciosa en 3 hermanas trillizas. Asimismo, también se describe un cuarto caso de déficit de cobalamina con anticuerpos antifactor intrínseco y negatividad para anticuerpos anticélula parietal gástrica en una her-mana no trilliza. En este trabajo se revisa la presentación pediátrica de la anemia perniciosa, así como la posible existencia de una agregación familiar. Por otra parte, se ha evaluado la necesidad de realizar un estudio sistemático de los familiares y el beneficio de establecer un protocolo de se-guimiento endoscópico de los pacientes con anemia perniciosa


Subject(s)
Humans , Female , Adult , Anemia, Pernicious/complications , Vitamin B 12 Deficiency/complications , Gastritis, Atrophic/complications , Diseases in Twins , Clinical Protocols , Psoriasis/complications
13.
Gastroenterol Hepatol ; 30(10): 580-2, 2007 Dec.
Article in English | MEDLINE | ID: mdl-18028852

ABSTRACT

Pernicious anemia is the most common cause of vitamin B12 deficiency in adults. This entity is associated with chronic atrophic gastritis. We report a case of pernicious anaemia in triplets. We also report a fourth case of cobalamin deficiency with antibodies against intrinsic factor and anti parietal cell antigen negative antibodies in a sibling. The present article reviews the pediatric presentation of pernicious anemia and highlights the possible existence of familial aggregation. Furthermore, the need for systematic familial screening and the usefulness of an endoscopic follow-up program in patients with pernicious anemia are evaluated.


Subject(s)
Anemia, Pernicious/diagnosis , Adult , Child , Female , Humans
14.
Gastroenterol Hepatol ; 30(4): 219-21, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17408550

ABSTRACT

A case-report of a man with chronic diarrhoea is presented. After an unsuccessful treatment of an intestinal yersioniosis, the diagnosis of collagenous intestinal disease affecting duodenum, ileum and colon was made. In addition, a IgG transient deficiency was observed. The literature about gastrointestinal involvement, concomintant infection by Yersinia and IgG deficiency in collagenous colitis is reviewed.


Subject(s)
Colitis/etiology , Duodenitis/etiology , IgG Deficiency/etiology , Ileitis/etiology , Yersinia Infections/complications , Yersinia enterocolitica , Anti-Bacterial Agents/therapeutic use , Anti-Inflammatory Agents/therapeutic use , Budesonide/therapeutic use , Chronic Disease , Ciprofloxacin/therapeutic use , Colitis/drug therapy , Colitis/pathology , Collagen/analysis , Diarrhea/etiology , Diarrhea/pathology , Duodenitis/drug therapy , Duodenitis/pathology , Humans , IgG Deficiency/drug therapy , Ileitis/drug therapy , Ileitis/pathology , Intestinal Mucosa/chemistry , Intestinal Mucosa/pathology , Male , Middle Aged , Yersinia Infections/drug therapy
15.
Gastroenterol. hepatol. (Ed. impr.) ; 30(4): 219-221, abr.2007. ilus
Article in Es | IBECS | ID: ibc-052539

ABSTRACT

Presentamos un caso de un varón con diarrea crónica. Se trató, sin éxito, una yersiniosis intestinal, y se diagnosticó una enfermedad intestinal colágena que afectaba a duodeno, íleon y colon. Se observó, a su vez, un déficit transitorio de inmunoglobulina G (IgG). Realizamos una revisión de la literatura médica sobre la afectación gastrointestinal, infección concomitante por Yersinia y déficit de IgG en la colitis colágena


A case-report of a man with chronic diarrhoea is presented. After an unsuccessful treatment of an intestinal yersioniosis, the diagnosis of collagenous intestinal disease affecting duodenum, ileum and colon was made. In addition, a IgG transient deficiency was observed. The literature about gastrointestinal involvement, concomintant infection by Yersinia and IgG deficiency in collagenous colitis is reviewed


Subject(s)
Male , Middle Aged , Humans , Intestinal Diseases/microbiology , Intestinal Diseases/complications , IgG Deficiency/microbiology , Yersinia enterocolitica , Yersinia Infections/complications , Diarrhea/microbiology , Chronic Disease
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