Isolasi dan Identifikasi Bakteri Streptococcus spp. pada Babi Penderita Porcine Respiratory Disease Complex

Streptococcus sp. merupakan salah satu penyebab primer terjadinya Porcine Respiratory Disease Complex (PRDC). Penelitian ini dilakukan untuk mendeteksi bakteri Streptococcus sp. di saluran pernapasan babi penderita PRDC serta distribusi bakteri Streptococcus sp. pada babi pra sapih dan pasca sapih. Sebanyak 43 sampel swab rongga hidung dikumpulkan dari babi yang menunjukkan gejala penyakit PRDC seperti depresi, anorexia, dyspnea, adanya eksudat dari rongga hidung, batuk/bersin, dan pembengkakan pada persendian. Sampel berasal dari peternakan babi di kabupaten Tabanan, kabupaten Badung, dan kabupaten Gianyar. Semua sampel ditanam pada media sheep blood agar dilanjutkan dengan uji pewarnaan Gram. Koloni yang dicurigai kemudian dilakukan uji primer berupa uji katalase dan uji oksidase serta uji biokimia dengan MRPV, TSIA, SIM, uji koagulase dan uji gula – gula . Hasil penelitian menunjukkan 23 sampel (tiga belas dari babi pra sapih dan sepuluh dari babi pasca sapih) telah terdeteksi positif Streptococcus sp. ? hemolitik (20 isolat) dan Streptococcus sp. ? hemolitik (3 isolat).

Prevalence, Resistance Profile & Virulence Genes of Streptococcus agalactiae Colonizing Near-term Pregnant Women Attending Ain Shams University Hospital

Group B streptococcus (GBS) is a common cause of infections in pregnant females and non-pregnant adults with chronic diseases (such as diabetes and cancer), also it is the main reason of septicaemia and meningitis in infants. The aim of this study was to figure out how common GBS is in pregnant women, the antimicrobial sensitivity pattern of the isolated GBS colonies and check the presence of scpB and rib virulence genes in these isolates. We screened 203 pregnant women attending the Maternity Hospital of Ain Shams University using vaginal sampling. Isolation was done on CHROMagarTM Strep B & sheep blood agar plates then identified via colony characters, Gram stain, test for catalase production, Christie–Atkins–Munch-Petersen (CAMP) test, test for hippurate hydrolysis and latex agglutination test. This was followed by an antibiotic susceptibility test. Finally, Detection of scpB and rib virulence genes by conventional PCR was done. Our study detected that the prevalence rate of GBS in involved pregnant women was 11.33%. A statistically significant association between colonization and history of spontaneous abortion and preterm labor was observed. CHROMagar™ StrepB showed the same sensitivity of sheep blood agar with extensive effort to isolate suspected GBS colonies from blood agar. GBS was 100% sensitive to levofloxacin, linezolid, cefepime, ceftaroline and ceftriaxone. Also, it was highly sensitive to vancomycin (91.3%). Sensitivity to clindamycin, azithromycin, penicillin and ampicillin was (21.70%, 21.70%,47.80%, 47.80%) respectively. The least sensitivity of GBS was to erythromycin ( 8.7%). All isolates possessed the scpB gene (100%) while only 18 isolates (78.26%) had the rib gene.

Anaerobic infections in patients admitted in various surgical units of a tertiary care hospital of north India: neglected but important

Background and Objectives: Anaerobic infections are usually caused by the host’s endogenous flora due to a breach in the anatomical barriers and Bacteroides spp. are the most notorious organisms associated with anaerobic infections. The identification of anaerobes has been a challenge since times. MALDI-TOF-MS is a boon for aiding the rapid detection of anaerobic organisms and has helped us to enlist the distribution of various anaerobic pathogens. Materials and Methods: This retrospective analysis (January 2018 to December 2019) was carried out in a tertiary care hospital in North India, in which the anaerobic microbiological profile of all patients admitted to surgical wards, ICU, and OPD of various departments (Orthopedics, Surgery, Gynecology, and Obstetrics) was reviewed. Samples received were immediately processed aerobically (5% sheep blood agar and Mac Conkeyagar) as well as anaerobically (RCM and freshly prepared sheep blood agar) as per the laboratory protocols. Results: Bacteroides fragilis (19.12%) was the most common anaerobe whereas among aerobes Escherichia coli (30.2%) followed by Klebsiella pneumoniae (10.34%) were most commonly isolated. The majority of patients were males (56%) and the most common presentation was with abscesses (21.4%). Polymicrobial infections (69.51%) outnumbered monomicrobial ones (30.48%). Conclusion: There is a paucity of literature on anaerobe isolation from surgical infections from our country which motivated us to study anaerobic infections and the high sample size in our institute enabled us to study surgical infections from an anaerobic perspective. This will add to the knowledge of microbiologists and clinicians. MALDI-TOF MS helped in rapid and accurate identification and hence we could report a wider spectrum of organisms in our study

Study of Hemolysin Gene “aspHS” and Its Phenotype in Aspergillus Fumigatus

AIM: The main goal of this study was to analysis the “aspHS” gene and its phenotype in A. fumigatus. METHODS: Fifty-three A. fumigatus strains, including environmental, clinical and reference isolates, were used in this research. PCR was carried out based on Asp-hemolysin gene sequence. Two restriction enzymes TagI and NcoI were employed for digestion of PCR products. RESULTS: PCR products of 180 and 450 bp were generated for all A. fumigatus isolates. Digestion of the aspHS gene 180 bp amplicons with TagI and 450 bp amplicons with TagI and NcoI produced the expected bands for most isolates. Hemolysin production of A. fumigatus isolates was evaluated on sheep blood agar (SBA). CONCLUSION: In conclusion, our results provide evidence hemolysin activity and analysis of aspHS gene of A. fumigatus. These data may be useful in early diagnosis of A. fumigatus infections.

Pemanfaatan Penggunaan Darah Donor Yang Telah Kadaluwarsa Untuk Pembuatan Agar Darah Pada Pertumbuhan Staphylococcus aureus

The use of media so that sheep's blood for the growth of Staphylococcus aureus bacteria is still difficult to get the sheep's blood. Therefore, a way to find alternatives to sheep blood is sought, namely by using donor blood that has expired. In this study using blood agar media using blood donors and blood agar media using sheep blood as a control. Using a blood donor with a presentation of 4% and 5% of the colony diameter, zone of hemolysis, the color of the colony of Staphylococcus aureus is almost the same as supported grown in 4% sheep blood agar media. While 6%, 7% and 8% blood donors are not supported for the growth of Staphylococcus aureus because the hemolysis zone and colony color are different from controls using sheep blood agar media

Isolated Hemolysis Profile of Streptococcus Sp. Isolation Result from Swine’s Tonsil In Slaughter House at Punggul and Bongkasa Village

Streptococcus is a Gram-positive coccus from the family Streptococcaceae that can be found normally in some healthy animal but can cause a disease as well. The purpose of this research is to know the hemolysis profile from pig’s tonsil swab isolated from the traditional pig slaughterhouse at Punggul Village and Bongkasa Village that can be divided into three hemolytic profile; alpha-hemolytic, beta hemolytic, and gamma hemolytic, to know the pathogenicity. This research is divided into several steps, such as; isolating the swab, Gram test, catalase test, oxidase test, and hemolysis test on Sheep Blood Agar. Streptococcus is a Gram-positive coccus, tested Gram positive, catalase negative and oxidase positive. This research concludes the amount of positive Streptococcus sp sample based on hemolysis profile is 6 of 24 samples, whereas 3 of 24 samples (12,5%) has ? hemolysis pattern, 3 of 24 samples (12,5%) has ? hemolysis pattern and none showed the ? pattern. The conclusion from the table; showed positive sample of Streptococcus sp is divided 50:50 for the ? and ? hemolysis, and no sample showed the ? pattern. At most cases, the ? and ? hemolysis Streptococcus is a pathogen bacterium. This data might be useful for references to see the transmission of Streptococcus sp in swine at Abiansemal area in Badung, Bali

PREVALENCE OF VIRULENCE FACTORS AMONG CLINICAL ISOLATES OF ENTEROCOCCUS SPP.

ABSTRACTObjective: To identify some of the virulence factors such as hemolysin, gelatinase, and biofilm production among the clinical isolates of enterococci.Methods: Hemolysin detection using sheep blood agar. Gelatine agar was used for gelatinase production, and tube adherence method was used fordetecting biofilm production.Results: Hemolysin production observed in 49% of isolates, gelatinase production in 41% of isolates, and 46% of isolates were produced biofilm.Conclusion: Virulence factors production was noticed more in Enterococcus faecalis than Enterococcus faecium. It is necessary to find theproduction of important virulence factors among the clinical isolates as they are always associated with virulence of the organism including drugresistance.Keywords: Hemolysin, Gelatinase, Biofilm, Enterococcus.

Characterization and antibiogram of enteropathogenic Escherichia coli isolated from diarrhoeic and non-diarrhoeic dogs in South Bengal, India

Diarrhoea in canines is mainly caused by Escherichia coli which can be fatal also. To understand the depth of this infection, a study was undertaken to detect E. coli isolates from diarrhoeic and non-diarrhoeic dogs in Southern part of West Bengal. A total of 112 canine samples were tested during May to September 2012 revealing approx 63.4% (71) samples positive for Escherichia coli. The most common serotypes were O8 (23.9%) followed by O157 (19.7%), O101 (16.9%), O26 (15.5%), O153 (12.7%) and O6 (11.3%). Among these O6, O8, O26 and O157 were highly pathogenic to mice causing almost 100% mortality within 24hrs of inoculation and were also detected to be haemolytic on sheep blood agar plates except serotype O8. These isolates were mostly sensitive to nalidixic acid (80.29%), cotrimoxazole (78.88%), ciprofloxacin (74.65%), colistin and ceftriaxone (both 71.83%) but were resistant to amikacin (97.18%), kanamycin (95.78%), cephalexin (92.96%) and enrofloxacin (84.51%).

Comparison of Various Culture Methods for Isolation of Group B Streptococcus from Intrapartum Vaginal Colonization

ABSTRACT Aims: Group B Streptococcus (GBS) is one of the most common causes of neonatal sepsis throughout the world. Reports of vaginal colonization of GBS in India are few and variable. A study was conducted on pregnant women in a tertiary care hospital to compare various methods for isolation of GBS, to study the prevalence of GBS in pregnant women in third trimester, and to determine risk factors for GBS colonization. Settings and Design: Observational descriptive study. Materials and Methods: High vaginal swabs from 150 pregnant women in their third trimester were used to compare three methods for isolation of GBS viz. direct culture on 5% Sheep Blood agar, direct culture on selective Columbia Blood Agar and culture in LIM enrichment broth with subsequent culture on 5% Sheep Blood agar. A history of associated risk factors was also taken. Statistical Analysis Used: Statistical analysis was performed by Chi–square test. Results: Isolation was best from LIM enrichment broth with subsequent culture on 5% Sheep Blood Agar. Prevalence of GBS colonization by using culture method was 12.67%. Most frequently associated risk factor was intrapartum fever (42.11%). Conclusions: Standard Culture Method using LIM enrichment should be adopted as standard practice for isolation of GBS from vaginal swabs.