Nonhemolytic <i>Listeria monocytogenes</i>—Prevalence Rate, Reasons Underlying Atypical Phenotype, and Methods for Accurate Hemolysis Assessment by Iwona Kawacka, Agnieszka Olejnik-Schmidt, Marcin Schmidt

Subjects: “…CAMP test…”
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Analysis of molecular characteristics of CAMP-negative Streptococcus agalactiae strains by Jie Zhou, Li Zhang, Yang Zhang, Hui Liu, Kangli Xu, Baohu Zhang, Tianyuan Feng, Shucai Yang

“…This characteristic feature of Streptococcus agalactiae has led to the widespread use of the CAMP test as an identification method.MethodsVaginal/rectal swabs, collected from women at 35–37  weeks of pregnancy, were first inoculated into a selective enrichment broth media, then subcultured onto GBS chromogenic agar and 5% sheep blood agar sequentially. …”
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Human, cattle and goat blood as substitutes for sheep blood in blood-supplemented culture media by GN Dilrukshi, UN Jayewardane, F Sajidha, DMBT Dissanayake

“…</p><p>Typical arrow head shape haemolysis for S. agalactiae and match-head shape haemolysis for Listeria were seen in the CAMP test on the three animal blood agar plates whereas human blood gave negative results. …”
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Isolation of Arcanobacterium haemolyticum from calves with pneumonia and proposal of a diagnostic protocol by Suvajdžić Ljiljana, Ašanin Jelena, Lako Bjanka, Potkonjak Aleksandar, Sakač Vladimir, Čabarkapa Ivana, Stojaković Nataša

“…The investigation was complemented by the double CAMP test. Five strains of Arcanobacterium haemolyticum in pure culture were found. …”
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Prevalence and factors associated with group B streptococcal colonization in pregnant women by Taís Viana Lédo de Oliveira, Fabrícia Almeida Fernandes Santana, Claudio Lima Souza, Márcio Vasconcelos Oliveira

“…For confirmatory identification of GBS, the CAMP test and latex agglutination were used. Descriptive analysis and univariate and multivariate association analysis were performed using a multinomial logistic model. …”
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Serotypes, antibiotic susceptibilities, and multi-locus sequence type profiles of Streptococcus agalactiae isolates circulating in Beijing, China. by Ping Wang, Jing-jing Tong, Xiu-hua Ma, Feng-li Song, Ling Fan, Cui-mei Guo, Wei Shi, Sang-jie Yu, Kai-hu Yao, Yong-hong Yang

“…To investigate the serotypes, antibiotic susceptibilities, and multi-locus sequence type (MLST) profiles of Streptococcus agalactiae (S. agalactiae) in Beijing to provide references for the prevention and treatment of S. agalactiae infections.All isolates were identified using the CAMP test and the latex-agglutination assay and serotyped using a Strep-B-Latex kit, after which they were assessed for antibiotic susceptibility, macrolide-resistance genes, and MLST profiles.In total, 56 S. agalactiae isolates were identified in 863 pregnant women (6.5%). …”
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Screening of Group B Streptococcal and Candida Infections in Antenatal Women Visiting a Tertiary Care Hospital and the Neonatal Outcome by Abraham Faby, M. Anuradha, R. Rachel, Saswati Tripathy, Sajeetha Kumari Raveendran

“…HiChrome agar was used for speciation of Candida species. CAMP test was performed for GBS; further identification was done using Streptococcal grouping kit. …”
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Molecular characterization of Listeria monocytogenes in bovine milk and evaluating the sensitivity of PCR for direct detection in milk by SAWANT LAXIMAN, SIMRANPREET KAUR, R S AULAKH, J P S GILL

“…The isolates were phenotypically and genotypically characterized by biochemical tests, haemolysis on sheep blood agar, CAMP test, PI-PLC assay and multiplex PCR targeting virulence cluster genes namely haemolysin (hlyA), PI-PLC (plcA), actin (actA), p60 (iap) and regulatory (prfA); along with multiplex PCR for typing major serovars targeting lmo0737, ORF2819, ORF2110 and prs genes. …”
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Comparison of different sampling techniques and of different culture methods for detection of group B streptococcus carriage in pregnant women by Verhelst Rita, Temmerman Marleen, Verstraelen Hans, Cools Piet, Saerens Bart, Claeys Geert, Tency Inge, El Aila Nabil A, Vaneechoutte Mario

“…The isolates were confirmed as S. agalactiae using the CAMP test on blood agar and by molecular identification with tDNA-PCR or by 16S rRNA gene sequence determination.…”
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Expanding capabilities to evaluate readiness for return to duty after mTBI: The CAMP study protocol. by Amy Seal Cecchini, Karen McCulloch, Courtney Harrison, Oleg Favorov, Maria Davila, Wanqing Zhang, Julianna Prim, C D R Michael Krok

“…<h4>Objective</h4>The purpose of this observational longitudinal study is to: 1- establish typical performance parameters for ADSM on the CAMP test battery 2- determine the element of the CAMP battery that demonstrate the greatest differences from standard performance and serve as predictors for successful return to duty and 3- develop clinician-facing feedback algorithms and displays and 4-develop materials for clinical dissemination. …”
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β-Hemolysin, not agrA mutation, inhibits the hemolysis of α-hemolysin in Staphylococcus aureus laboratory and clinical strains by Lin Liu, Hemu Zhuang, Yanfei Wang, Yuexing Tu, Yunsong Yu, Yan Chen, Xueqing Wu

“…The hemolysis phenotype was verified by the Christie-Atkinson-Munch-Peterson (CAMP) test. Quantitative reverse transcription PCR was carried out to evaluate the relative gene expressions of hlb, hla, and RNAIII. …”
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Prevalência da colonização pelo estreptococo do grupo B em gestantes atendidas em ambulatório de pré-natal Prevalence of group B Streptococcus in pregnant women from a prenatal car... by Adriane Pogere, Cássia Maria Zoccoli, Nina Reiko Tobouti, Paulo Fontoura Freitas, Armando José d'Acampora, João Nilson Zunino

“…All suspected colonies were submitted to the agglutination test for detection of the specific group B antigen. The Camp test was used for GBS identification in non-hemolytic varieties. …”
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Prevalência de colonização por Streptococcus agalactiae em gestantes atendidas em maternidade do Ceará, no Brasil, correlacionando com os resultados perinatais Prevalence of the co... by José Juvenal Linhares, Pedro Gomes Cavalcante Neto, Janssen Loiola Melo Vasconcelos, Thiago de Vasconcelos Saraiva, Amélia Mayara Frota Ribeiro, Tamises Melo Siqueira, Francisco Ruliglésio Rocha

“…RESULTS: The prevalence of colonization obtained by field tests was 9.8% by CAMP test, but only 4.2% by serology. The only protective factor was white skin color (p=0.01, 0.45>OR>0.94, 95%CI). …”
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Epidemiology of malaria in Rohingya refugee camps in Bangladesh within 2017–2020 by Md. Ariful Anwar Khan, Richard James Maude, Sharmin Musa, Hamida Khanum

“…Diagnostic tests were done by trained medical technologists upon the advice of the concerned physicians in the camps. Test positivity rate (%) and annual parasite incidence were calculated and compared using chi-squared (χ 2) test or odds ratios. …”
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Impacts of Intermittent Water Supply on Water Quality in Two Palestinian Refugee Camps by Shatha Alazzeh, S. E. Galaitsi, Amahl Bishara, Nidal Al-Azraq, John L. Durant

“…Between March 2016 and June 2017, we examined water quality within the distribution system in the camps, testing 520 samples in Aida Camp and 198 samples in Alazzah Camp for total coliforms, <i>Escherichia coli</i> (<i>E. coli</i>) bacteria, and residual chlorine. …”
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Group B Streptococci recto-vaginal colonization, antimicrobial susceptibility pattern, and associated factors among pregnant women at selected health facilities of Wolaita Sodo Tow... by Abera Kumalo, Biruk Gebre, Shimelis Shiferaw, Wokil Wolde, Tamirayehu Shonde

“…For GBS isolation, recto-vaginal swabs were inoculated in 1 mL Todd-Hewitt broth medium supplemented with 10 μg/mL colistin and 15 μg/mL nalidixic acid, followed by identification of isolates based on colonial morphology, gram stains, catalase reaction, and CAMP tests. Antimicrobial susceptibility testing was performed using a modified Kirby–Bauer disc diffusion method. …”
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