The susceptibility in vitro of 71 isolations of V. cholerae was evaluated: 24 of clinical origin and 47 strains of clinical and environmental origin collected in the epidemic of 1991 and during the outbreak epidemic of 1998 in Lima-Peru respectively. The biochemical and serological tests carried out established that 43 (60,6%) corresponded to the serogroup O1 Ogawa of the 1998 epidemic; 26 (36....

Traditionally, the routine artificial digestion test is applied to assess the presence of Trichinella larvae in pigs. However, this diagnostic method has a low sensitivity compared to serological tests. The results from artificial digestion tests in Switzerland were evaluated over a time period of 15 years to determine by when freedom from infection based on these data could be confirmed. Freed...

. CA~ERON, C. M. Evaluation of serological tests as qiteria for immunity to staphylococcal skin aifectton 1n rabbtts. Onderstepoort]. vet. R es. , 38 (2), 99-110 (1971). Rabbits immu_nized with. killed ' ':'hole culture vaccine, bacteria alone or bacteria plus toxoid, were markedly more r~s1st~nt to skm mfecu_on t_han control rabbits. H owever, the degree of immunity was not related to the ant1...

The occurrence of malignant syphilis in an immunocompetent individual is rare. We present malignant syphilis in a 35-year-old immunocompetent male who presented with a 1-month history of noduloulcerative lesions on the torso. Examination revealed multiple pustules, nodules, and deep-seated ulcers distributed on the trunk, face, and upper and lower limbs. Characteristic morphology of lesions, po...

Brucellosis is one of the most widespread zoonotic diseases, with the most frequent complication being osteoarticular changes. The aim of this study was to assess the changes of C-terminal telopeptide of type II collagen (CTX-II) in patients infected with brucellosis. A total of 84 brucellosis patients and 43 volunteers were selected and divided into brucellosis vs. control groups. Serum sample...

The need for a reliable serological test for occult staphylococcal infection has long been evident, especially for the diagnosis of lesions of the spine and hip. Earlier reports on the use of the anti-a-haemolysin (Lack and Shelswell, 1955; Lack, 1957), and anti-leucocidin tests (Towers and Gladstone, 1958; Towers, 1961) have placed us in a position to compare the value of these two tests; anti...

The aim of this study was to evaluate the usefulness of serologic analysis for the diagnosis of active cytomegalovirus infection in patients with AIDS. Active cytomegalovirus infection was diagnosed by virus isolation from urine and saliva and detection of antigenemia. Serologic analysis was done by several conventional and innovative procedures. The results indicate no correlation between any ...

Based on small scale studies or on little sensitive serological tests, bovines in the south of the state of Rio Grande do Sul, Brazil, are known to be infected with either bovine herpesvirus 1 (BoHV-1) or 5 (BoHV-5). However, whether the prevalence of each of these viruses is high or low is currently still unknown. In order to determine the extent of BoHV (-1 and/or -5) infections in bovines in...

OBJECTIVE Establish the concordance between in-house ELISA and IIF for the diagnosis of infection with T. cruzi using blood eluates. METHODOLOGY A study of diagnostic technology evaluation and cross-sectional sample of 650 residents of an endemic area of Colombia was conducted. It was determined the Receiver Operating Characteristic curve (ROC) and IIF was used as a gold standard. It was esta...

Dependence between the sensitivities or specificities of pairs of tests affects the sensitivity and specificity of tests when used in combination. Compared with values expected if tests are conditionally independent, a positive dependence in test sensitivity reduces the sensitivity of parallel test interpretation and a positive dependence in test specificity reduces the specificity of serial in...