scholarly journals Diagnosis and Management of Cervicofacial Actinomycosis: Lessons from Two Distinct Clinical Cases

Antibiotics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 139 ◽  
Author(s):  
Anette Stájer ◽  
Barrak Ibrahim ◽  
Márió Gajdács ◽  
Edit Urbán ◽  
Zoltán Baráth

Members of the Actinomyces genus are non-spore-forming, anaerobic, and aerotolerant Gram-positive bacteria that are abundantly found in the oropharynx. They are the causative agents of actinomycosis, a slowly progressing (indolent) infection with non-specific symptoms in its initial phase, and a clinical course of extensive tissue destruction if left untreated. Actinomycoses are considered to be rare; however, reliable epidemiological data on their prevalence is lacking. Herein, we describe two representative and contrasting cases of cervicofacial actinomycosis, where the affected patients had distinctively different backgrounds and medical histories. Identification of the relevant isolates was carried out using matrix-assisted laser desorption/ionization mass spectrometry; antimicrobial susceptibility was performed using E-tests. Cervicofacial actinomycoses are the most frequent form of the disease; isolation and identification of these microorganisms from relevant clinical samples (with or without histological examination) is the gold standard for diagnosis. The therapy of these infections includes surgical debridement and antibiotic therapy, mainly with a penicillin-derivative or clindamycin.

2020 ◽  
Vol 99 (6) ◽  
pp. 141-147
Author(s):  
E.I. Krasnova ◽  
◽  
G.S. Karpovich ◽  
T.V. Komissarova ◽  
I.I. Izvekova ◽  
...  

Materials and methods: a pilot open observational prospective study of 218 pediatric patients with laboratory-verified COVID-19 diagnosis was performed. The main epidemiological data were analyzed, including the age structure, as well as the features of the clinical course of this disease. The development of COVID-19 pneumonia was recorded in 11,5% of cases (25 patients), while more often pneumonia was recorded in children of the first year of life, as well as over 12 years of age (23,5% and 20% of cases, respectively) than in children of other age groups (p<0,05). CT-1 stage was recorded in 13 patients (52% of cases), CT-2 stage in 10 patients (40% of cases), CT-3 stage in 2 patients (8% of cases). The leading clinical symptoms of COVID-19 in children were: hyperemia of the mucous membranes of the pharynx – 100% of cases (218 patients); increased body temperature – 95,9% of cases (209 patients), while the average figures were 37,6 (36,6; 38,2)0 С; cough – 19,7% of cases (43 patients, of which 21 with pneumonia); diarrhea – 17,9% of cases (39 patients); vomiting – 6,4% of cases (14 patients); change in the auscultatory picture – 3,7% of cases (8 patients with pneumonia). In infants with COVID-19, diarrhea was more often recorded in comparison with patients in the age group over 13 years old (35% and 4% of cases, respectively; p=0,001). The development of cough was less often recorded in children of the first year of life, in Compared with patients over 13 years of age (9% and 40% of cases, respectively; p=0,004), the same trend was observed in COVID-19 pneumonia (25% and 89% of cases, respectively, p=0,02). Thus, the clinical picture of COVID-19 in pediatric patients is characterized by non-specific symptoms. There is a definite trend towards more frequent development of COVID-19 pneumonia in patients in the first year of life, as well as in puberty. Infants with COVID-19 pneumonia are characterized by a high incidence of atypical course of the disease, while adolescents are more likely to show a manifest clinical picture of COVID-19.


2020 ◽  
Vol 26 (1-2) ◽  
pp. 73-78
Author(s):  
A Hossen ◽  
MH Rahman ◽  
MZ Ali ◽  
MA Yousuf ◽  
MZ Hassan ◽  
...  

Duck plague (DP) is the most important infectious disease of geese, ducks and free-ranging water birds. The present study was conducted to determine the prevalence of duck plague virus followed by isolation and identification. For these purposes, a total of 155 cloacal swabs samples were collected randomly from duck of different haor areas of Bangladesh including 45 (41 surveillance and 4 clinical) samples from Netrokona; 42 (40 surveillance and 2 clinical) samples from Kishoregonj; 30 samples from Brahmanbaria and 38 samples from Sunamganj. The samples were processed and pooled (1:5 ratio) for initial screening of target polymerase gene of duck plague virus by polymerase chain reaction (PCR) method. All the samples of a positive pool were then tested individually for identifying the individual positive samples. The result showed that out of 155 samples, 41 (26.45%) were found positive in which 17 were from Netrokona, where 15 (36.58%) were from surveillance samples and 2 (50%) were from clinical sample; 16 were from Kishoregonj, where 14 (35%) were from surveillance samples and 2 (100%) were from clinical sample; 2 (6.6%) were from Brahmanbaria and 5 (13.15%) were from Sunamganj. These positive samples were inoculated into 9-10 days embryonated duck eggs (EDE) through chorioallantoic membrane (CAM) route for the isolation of virus. The EDE died earlier was also chilled, and in a similar way, the CAMs were collected and again performed PCR for id entification of virus. Out of 41 PCR positive samples, 26 samples were isolated and reconfirmed by PCR. Subsequently, DPV was isolated in primary duck embryo fibroblasts cell culture and confirmed by observing cytopathic effect (CPE). Bang. J. Livs. Res. Vol. 26 (1&2), 2019: P. 73-78


Author(s):  
Sharon Pelo ◽  
Vuyo Mavumengwana ◽  
Ezekiel Green

Plant endophytes are microbial sources of bioactive secondary metabolites, which mimic the natural compounds chemistry of their respective host plants in a similar manner. This study explored the isolation and identification of fungal endophytes, and investigated the antibacterial and antimycobacterial activity of their crude extracts. Fungal endophytes were isolated from Solanum mauritianum, identified using morphological traits and internal transcribed spacer ribosomal-deoxyribonucleic acid (ITS-rDNA) sequence analysis. Eight fungal endophytes were identified as Aureobasidium pullulans, Paracamarosporium leucadendri, Cladosporium sp., Collectotrichum boninense, Fusarium sp., Hyalodendriella sp., and Talaromyces sp., while Penicillium chrysogenum was isolated from the leaves and unripe fruits. Good activity was observed for the crude extracts of Paracamarosporium leucadendri inhibiting Mycobacterium bovis, Klebsiella pneumoniae, and Pseudomonas aeruginosa at 6 µg/mL. Crude extracts of Fusarium sp., showed activity at 9 μg/mL against M. bovis, M. smegmatis and K. pneumonia. In general, the crude extracts showed great activity against Gram-negative and Gram-positive bacteria and novel results for two mycobacteria species M. bovis and M. smegmatis. The results provide evidence of diverse fungal endophytes isolated from Solanum mauritianum, and evidence that fungal endophytes are a good source of bioactive compounds with pharmaceutical potential, particularly against Mycobacterium tuberculosis.


Author(s):  
Huda Zaid Al-Shami ◽  
Muhamed Ahmed Al-Haimi ◽  
Omar Ahmed Esma’il Al-dossary ◽  
Abeer Abdulmahmood Mohamed Nasher ◽  
Mohammed Mohammed Ali Al-Najhi ◽  
...  

Background and objectives: At the present time, antimicrobial resistance (AMR) is a major public health hazard, with antimicrobial resistance bacteria increasing exponentially. This study estimates the epidemiological profiles and antimicrobial resistance of Gram-positive bacteria (GPB) and Gram-negative bacteria (GNB)  isolated from clinical samples among patients admitted to two University hospitals in Sana'a city for one year (2019). Methods: This was a retrospective study of clinical samples of patients collected from January 1, 2019 to December 30, 2019. All samples were appraised to determine presence of infectious agents using standard methods for isolation and identification of bacteria and yeasts from clinical samples of patients admitted to Al-Gumhouri University Hospital and Al-Kuwait University Hospital in Sana'a city. Antibiotic resistance was done using Kirby-Bauer disc diffusion methods. Results:  2,931 different pathogenic bacteria were detected from 24,690 different clinical specimens. The samples had an overall detection rate of 11.9% (2931/24,690). Among the bacterial pathogens isolated from clinical samples, 52.4% (n=1536) had GPB and 41.2% (n=1207) had GNB. The predominant GNB isolates were E.coli (22.04%), Klebsiella spp (6.03%), Pseudomonas aeruginosa (7.1%), Acinetobacter baumannii (1.46%), Enterobacter spp. (1.09%), Citrobacter spp. (1.16%), respectively. Among the GPB, S.aureus was the most common (26.3%), Coagulase-negative Staphylococcus (8.1%), Non-hemolytic Streptococcus (9.1%), Other alpha-hemolytic Streptococcus (3.9%), Streptococcus pyogenes (1.9%), and Streptococcus pneumoniae (0.5% ). A high rate of antibiotic resistance was recorded for sulfamethoxazole/trimethoprim (85.5%), ceftazidime (81.07%), ampicillin (70.4%), cefuroxime (66.4%). Conclusions:  The current study results revealed that the rate of resistance between GNB and GPB is associated with the incidence of different infections in patients attending two major tertiary hospitals in Sana'a city is very high. These results indicate ongoing screening and follow-up programs to detect antibiotic resistance, and also suggest the development of antimicrobial stewardship programs in Sana'a, Yemen.                     Peer Review History: Received: 9 September 2021; Revised: 11 October; Accepted: 23 October, Available online: 15 November 2021 Academic Editor:  Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.  Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewers: Rima Benatoui, Laboratory of Applied Neuroendocrinology, Department of Biology, Faculty of Science, Badji Mokhtar University Annaba, BP12 E L Hadjar–Algeria, [email protected] Dr. Wadhah Hassan Ali Edrees, Hajja University, Yemen, [email protected] Rola Jadallah, Arab American University, Palestine, [email protected] Similar Articles: PREVALENCE OF PSEUDOMONAS AERUGINOSA (P. AERUGINOSA) AND ANTIMICROBIAL SUSCEPTIBILITY PATTERNS AT A PRIVATE HOSPITAL IN SANA'A, YEMEN EVALUATION OF ANTIBACTERIAL RESISTANCE OF BIOFILM FORMS OF AVIAN SALMONELLA GALLINARUM TO FLUOROQUINOLONES


2018 ◽  
Vol 12 (1) ◽  
pp. 99-109
Author(s):  
Yashpal Singh Malik ◽  
Shubhankar Sircar ◽  
Sharad Saurabh ◽  
Jobin Jose Kattoor ◽  
Rashmi Singh ◽  
...  

Since the unexpected discovery of picobirnaviruses (PBV) in 1988, they have been reported in many animals including mammals and birds, which comprises both terrestrial and marine species. Due to their divergent characteristics to other viral taxa they are classified into a new familyPicobirnaviridae. Although their pathogenicity and role in causing diarrhea still remains a question since they have been discovered in symptomatic and asymptomatic cases both. Recent studies employing state-of-art molecular tools have described their presence in various clinical samples, like stool samples from different mammals and birds, respiratory tracts of pigs and humans, sewage water, different foods,etc. Furthermore, their epidemiological status from different parts of the world in different hosts has also increased. Due to their diverse host and irregular host pattern their role in causing diarrhea remains alien. The heterogeneity nature can be ascribed to segmented genome of PBV, which renders them prone to continuous reassortment. Studies have been hampered on PBVs due to their non-adaptability to cell culture system. Here, we describe the molecular epidemiological data on PBVs in India and discusses the overall status of surveillance studies carried out till date in India.


Author(s):  
S. L. Owolabi ◽  
I. A. Azeez

The alarming increase of antibiotic resistance of Escherichia coli has posed a great challenge in the public health sector. Thus, this microorganism is a leading cause of different human infections and it can be found in various environments. The aim of this study is to investigate the antimicrobial susceptibility patterns and the multiple antimicrobial resistance profile of Escherichia coli isolates obtained from some hospitals in Abeokuta, Ogun State, Nigeria. Isolates of E. coli were obtained from different clinical samples and were re-identified morphologically and biochemically. E. coli was isolated from 30% out of a total of 70 clinical samples analyzed for isolation and identification. The isolation rate of E. coli was highest in urine samples 10(47.6%) when compared to other clinical samples. There was significant increase in the resistance rate of E. coli to tetracycline (14.3%), ceftazidime (14.2%), and ampicillin (14.2%).Also, an increased sensitivity rate to augmentin (71.4%), ofloxacin (66.7%), cefuroxime (66.7%), ciprofloxacin (61.9%) and ceftazidime (61.9%) were observed. Furthermore, the overall multiple drug resistance rates obtained was 14(66.7%) and it was established that, multiple antimicrobial resistance of the E. coli isolates was plasmid mediated. E. coli isolates exhibited high resistance rate to multiple antimicrobial agents, however, its sensitivity to augmentin, ofloxacin, cefuroxime, ciprofloxacin and ceftazidime showed that these antimicrobials are still effective against E. coli infections in the study area.


2021 ◽  
Vol 4 (2) ◽  
pp. e126
Author(s):  
Iyabo Victoria Olatubi ◽  
Olukemi Aromolaran ◽  
Samuel Tolani Joseph ◽  
Oluwafeyikemi Ajoke Adeleke

The emerging field of forensic biology has attempted to solve certain problems encountered when estimating post-mortem interval (PMI) by using predictable changes in the microbial and arthropod community structure. Pig (Sus scrofa) carcasses are widely used as animal models in clinical human studies. The objective of this study was to identify bacteria from the skin surface of pig carcass for possible use in forensic investigation. Three pigs (a suitable human substitute) were collected from a local farm and killed by suffocation and further place in a bush land for decomposition. 24hours later skin samples were collected and transported to the laboratory for the isolation of bacteria using standard pour plate techniques and identified using Bergey’s manual of systemic bacteriology. The experiment was conducted in February 2019 during the dry season of the year with an average temperature of 23.50c and relative humidity of 60.8% A total of fourteen (14) isolates were gotten from the pig carcass samples out of which four (4) were Gram-positive bacteria and the remaining ten (10) were Gram-negative. Staphylococcus spp. (28.6%) was the most abundant while Salmonella sp., Serratia sp., Klebsiella sp., Citrobacter sp. and Proteus sp. occurred at 14.3% each. This study focus on the type of bacteria communities during a decomposition process which will help provide baseline information in the application of forensic biology to determination of nature of death, abuse or neglect.


2019 ◽  
Author(s):  
Raja Ram Gurung ◽  
Prashanna Maharjan ◽  
Ganga GC

Abstract Background: Staphylococcus aureus is one of the important superbugs distributed throughout the world. It causes minor skin infections to severe complications including nosocomial infections in both hospitals and community settings. These strains have multi-drug resistant property. Hence, they are difficult to manage which increase health-related costs and simultaneously intensifying the need for new antibiotics. The extent of Methicillin-Resistant Staphylococcus aureus (MRSA) in children is largely unknown. The study determines the current status of S. aureus and MRSA causing various infections in pediatric patients visiting International Friendship Children’s Hospital (IFCH). Methods: A cross-sectional study was conducted among patients visiting a hospital. Various clinical specimens were aseptically collected and processed according to standard microbiological procedures. Isolation and identification of S. aureus were done by microscopy, mannitol fermentation, and coagulase positivity. All identified S. aureus isolates subjected to in-vitro antibiogram by Kirby-Bauer disc diffusion technique adopting Clinical and Laboratory Standards Institute (CLSI) guideline. Isolates resistant to cefoxitin were considered to be MRSA. Whereas, isolates produced D-shaped inhibition zone around clindamycin when kept near erythromycin were considered to be Inducible Clindamycin Resistant (ICR). Results: 672 various types of clinical samples were processed from the microbiology laboratory from June and November 2015. Out of 300 culture positive samples, 52 (17.3%) were S. aureus isolates, among them 39 (75.0%) were found to be MRSA. The D-test showed that Macrolide-Lincosamide-Streptogramin-B (MLSB) phenotype was 15.4%. Conclusion: The study shows the MRSA occurrence is prevalent in pediatric patients and newer classes’ drugs are found more effective than β-lactam drugs to treat S. aureus infection. However, restriction on the indiscriminate use of such drugs may be an effective strategy to control the drug resistance. Keywords: Methicillin-Resistant Staphylococcus aureus (MRSA), Macrolide-Lincosamide-Streptogramin B (MLSB) phenotype, Inducible Clindamycin Resistant (ICR) test or D-zone test, Antibiotic resistance, Nepal


2017 ◽  
Vol 22 (2) ◽  
pp. 75-79
Author(s):  
O. F Belaia ◽  
O. A Paevskaya ◽  
S. N Zuevskaya ◽  
E. G Korogodskaia ◽  
K. T Umbetova ◽  
...  

The aim is to determine the frequency and dynamics of detection of specific lipopolysaccharide (LPS) O-antigens LPS/O-antigens of causative agents in hospitalized diarrhea patients. Materials and methods. A total of 146 hospitalized diarrhea patients were examined with the use of an immunological method of the reaction of coagglutination (RCA) for the presence of LPS O-antigens of Shigella, Salmonella, Yersinia and Campylobacter in feces as markers of major intestinal infections pathogens. The control group was consisted of 40 blood donors. Results. In acute diarrhea patients there was detected the predominance of Yersinia and Salmonella LPS O-antigens over Shigella and Campylobacter; the high frequency of intestinal bacterial mixt-infection in total (68%), as well as elevated rate incidence of Shigella, Salmonella, Campylobacter, Yersinia antigens in mixt-infections in comparison with those in monoinfections (24%). The total O-antigen "load" in patients with mixt-infection was 3 times higher than in patients with monoinfections; with the increasing of LPS/O-antigen "load" the rate of Salmonella inoculation declines. Conclusion. Under the same severity of the clinical course of the disease, the decline of Salmonella inoculation rate in cases of high antigenic "load" may indicate to the presence of the phenomenon of summation of toxic effects of LPS O-antigens when the concentration of each pathogen in the feces is insufficient (for inoculation) for bacteriological examination.


Author(s):  
Adel Alobaid ◽  
Abdalla Fadul ◽  
Reem Alqahtani ◽  
Norah Alqahtani

Introduction: Acacia nilotica is widely used in traditional medicine as an anti-inflammatory and anti-bacterial agent. Endodontic irrigations exhibit lot of disadvantages with incomplete removal of bacteria. Sodium Hypochlorite (NaOCl) is the prototype irrigation against primary endodontic infections, while 2% chlorhexidine gluconate (CHX) is the best for secondary endodontic infections. Aim: This study aims to examine the antimicrobial effect of Acacia nilotica against clinical isolates of endodontic microorganisms compared to traditional(NaOCl and CHX). Materials and Methods: A total of 12 random clinical samples were collected for bacterial isolation and identification. Clinical isolates were identified as (Streptococcus viridans& staphylococcus aureus). A well identified candida albicans was also used. Acacia nilotica bark was collected, washed, dried and then grounded to fine powder. Specimens were percolated in methanol, filtrated, and concentrated for crude extract. Autoclaved Mueller Hinton media were used for antimicrobial sensitivity test. Microorganisms were inoculated and test material was loaded as original and 50% for 24h. Antibacterial activity was measured by zone of inhibition Results: All tested agents showed an excellent zone of inhibition against all microorganisms tested with their original concentration. Acacia nilotica showed excellent ZOI with more linear effect in both concentrations against S. viridans and S. aureus. Conclusion: Acacia nilotica has shown an excellent zone of inhibition in both original and 50% concentration, therefore, it may be an excellent substitute or adjunct irrigation solution of hebetic origin in endodontics. We recommend taking this material to the next level as an endodontic irrigant. Key words : Antimicrobial, Acacia Nilotica, Extracts , Endodontic, Microorganisms


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