ABSTRACT
Current methods used for oral administration of pathogens to piglets are stressful for the animals because of fixation and use of inoculation methods such as oral gavage. In the present study an alternative way to challenge piglets with Typhimurium (ST) is investigated. The strategy was to incorporate the in a feed matrix, which is fed to the piglets and eaten voluntary. Different types of feed matrices were tested for their absorption capacity, handling properties, and palatability to piglets. Furthermore, the viability of ST in feed matrices was studied. The ST could be incorporated in ladyfinger biscuits; a 2-cm piece absorbs 1 mL of culture media. The ladyfinger biscuits were very well accepted by the piglets. After a short training period, the piglets consumed the -incorporated biscuits out of the feeding trough. In this way the animals were infected in a more natural way and without stress. The safety of farm workers was also increased because the incorporated ST results in less spoilage and spreading of ST during the infections. Results indicated that the ST cell count was reduced by only 0.2 log unit to 8.7 log cfu per inoculum after 24 h at 4°C incorporation of ST into the biscuits, which is sufficient for an infection study and indicates excellent viability of the . The viability was also indicated by increased fecal shedding of ST. Thus, it is concluded that ladyfinger biscuits are a suitable matrix to challenge piglets with ST.
Subject(s)
Animal Feed/analysis , Disease Models, Animal , Salmonella Infections, Animal/microbiology , Salmonella typhimurium/physiology , Swine Diseases/microbiology , Animals , Diet/veterinary , Eating , Feces/microbiology , SwineABSTRACT
Two boys of 1 and 16 year had painful buccal lesions and were admitted for dehydration. The younger had finger and toe blisters; the older, severely ill, had conjunctivitis, urethritis and skin lesions. Only symptomatic treatment with lidocaine gel and paracetamol gave good recovery. A 5-year-old Turkish girl had recurrent painful buccal ulcers which each time cleared up spontaneously. Stomatitis is common in childhood. Viral infections are the most common causes of stomatitis, in particular infections with herpes simplex virus (herpes gingivostomatitis), Coxsackie virus (herpangina, hand-foot-mouth-disease), chickenpox and infectious mononucleosis. Bacterial infections are rare and mostly secondary to the viral infections. In infants oral candidiasis (thrush) is a common cause of stomatitis. Most infections are self-limiting and reassurance of parents is important. Dehydration is a common complication and admission to hospital can be prevented by analgesics. The most important non-infectious conditions that cause stomatitis in children are recurrent aphthous stomatitis, erythema multiforme major (Stevens-Johnson syndrome), Behçet's disease, malignancy (leukaemia), immune-mediated disorders (agranulocytosis, cyclic neutropenia), traumata, blistering disorders of the skin and lichen planus. A complete history and a thorough physical examination usually give the correct diagnosis and further investigations are seldom necessary.
Subject(s)
Stomatitis/etiology , Adolescent , Amoxicillin/adverse effects , Behcet Syndrome/diagnosis , Candidiasis, Oral/diagnosis , Child, Preschool , Diagnosis, Differential , Female , Genetic Predisposition to Disease , Hand, Foot and Mouth Disease/diagnosis , Humans , Infant , Lichen Planus, Oral/diagnosis , Male , Mouth Neoplasms/diagnosis , Penicillins/adverse effects , Stevens-Johnson Syndrome/diagnosis , Stomatitis/microbiology , Stomatitis/virology , Virus Diseases/diagnosis , Wounds and Injuries/diagnosisABSTRACT
Catel-Manzke syndrome in a female infant: We describe a girl with typical features of the Catel-Manzke syndrome. Although most cases described are boys, X-linked inheritance is not very likely now at least four females with this syndrome have been described.
