scholarly journals Molecular Identification of Fusarium Species Recovered from Hospital Environment in Jos, Nigeria

Author(s):  
GE Kim ◽  
MO Okolo ◽  
UC Essien ◽  
UE Umeh ◽  
CC Iheukwumere

Fusariums pecies are opportunistic fungi that play an important role in nosocomial infection. The reservoir of Fusarium species in the hospital is not well understood in our environment. Therefore, the present study sought to identify the reservoir of Fusarium species in hospital environment. Three hundred and sixty (360) samples were collected from the environment of two tertiary health care facilities A and B. The sample consists of water (120), soil (120) and plants (120) which were sourced from hospital environments. Cultures of these samples were performed and polymerase chain reaction was used to confirm Fusarium species. The most predominant specie was Fusarium oxysporum Hospital A:(57.3%) and Hospital B:(64.4%). Most of the Fusarium isolates (76.7%) were recovered from soil samples, followed by water (45.0%) and the least were from plants (30.8%). In conclusion the present study has demonstrated that hospital environment is a reservoir for Fusarium species. However, identification of such reservoir would further enhance effective infection control measures.

2021 ◽  
pp. 101053952110110
Author(s):  
Salma Abbas ◽  
Aun Raza ◽  
Ayesha Iftikhar ◽  
Aamir Khan ◽  
Shahzaib Khan ◽  
...  

Health care personnel (HCP) are at high risk for coronavirus disease-2019 acquisition. Serum antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) indicate past infection. Our institution offered SARS-CoV-2 antibody testing to HCP. We surveyed HCP with positive test results to explore past exposure to SARS-CoV-2, details of symptoms during the preceding 6 months, and a history of SARS-CoV-2 polymerase chain reaction testing. A total of 2162 HCP underwent antibody testing. Eight hundred fifty-seven (39.6%) employees tested positive and, of these, 820 (95.7%) participated in the survey. When adjusted for age, males had higher odds of testing positive for SARS-CoV-2 antibodies compared with females (OR = 1.68; 95% CI = 1.37-2.05; P = .00) and clinical staff had higher odds of SARS-CoV-2 seropositivity compared with nonclinical staff (OR = 1.273; 95% CI = 1.06-1.53; P = .01). Implementation of effective infection control measures is essential to protect HCP from coronavirus disease-2019.


Author(s):  
Hadas Kon ◽  
Shirin Abramov ◽  
Sammy Frenk ◽  
David Schwartz ◽  
Ohad Shalom ◽  
...  

Abstract Background It is essential to detect carriers of carbapenemase-producing Enterobacterales in order to implement infection control measures. The objectives of this study was to evaluate the NG-Test® CARBA 5 (CARBA 5) assay for detection of five carbapenemases and to assess the cross reactivity of other OXA-type carbapenemases with the OXA-48-like specific antibodies. Methods A total of 197 Enterobacterales isolates were tested. To evaluate the cross reactivity, 73 carbapenem-resistant A. baumannii, harboring OXA-type variants, were tested. Polymerase chain reaction (PCR) served as gold standard for carbapenemase identification. Results Excellent agreement was found between PCR and CARBA 5, for all but one isolate. The single false positive result (a blaSME positive S. marcescens isolate) was incorrectly positive for blaOXA-48 by CARBA 5. No cross reactivity was observed. The sensitivity and specificity were 100.0% and 98.0%, respectively. Conclusions The CARBA 5 assay is highly sensitive and specific and is recommended as a tool for the detection of the main carbapenemases of interest in clinical microbiology laboratories.


1999 ◽  
Vol 20 (4) ◽  
pp. 233-236 ◽  
Author(s):  
Philippe Berthelot ◽  
Florence Grattard ◽  
Colette Amerger ◽  
Marie-Claude Frery ◽  
Frédéric Lucht ◽  
...  

AbstractObjectives:To investigate an outbreak ofSerratia marcescensin a maternity hospital (November 1994 to May 1995).Design:Retrospective analysis of epidemiological data and prospective study of systematic bacteriological samples from patients and environment, with genotyping of strains by arbitrarily primed polymerase chain reaction.Setting:A private maternity hospital, Saint-Etienne, France.Results:In the neonatal unit, 1 newborn developed a bacteremia, and 36 were colonized in stools with Smarcescens.As the colonization of some newborns was shown to occur only a few hours after delivery, the inquiry was extended to other maternity wards, where 8 babies and 4 mothers were found to be colonized. Environmental sampling led to the isolation of Smarcescensfrom a bottle of enteral feed additive in the neonatal unit and from the transducers of two internal tocographs in the delivery rooms. The genotyping of 27 strains showed two different profiles: a major epidemic profile shared by 22 strains (18 from babies of the neonatal unit, 2 from babies of other units, and 2 from breast milk) and another profile shared by 5 strains (2 from transducers of internal tocographs, 2 from babies, and 1 from a mother). The strain isolated from lipid enteral feeding was not available for typing. Although this source of contamination was removed soon from the neonatal unit, the outbreak stopped only when infection control measures were reinforced in the delivery rooms, including the nonreuse of internal tocographs.Conclusions:In delivery rooms, the quality of hygiene needs to be as high as in surgery rooms to prevent nosocomial colonization or infection of neonates at birth.


2017 ◽  
Vol 22 (3) ◽  
Author(s):  
Dr. Saira Afzal

<p>“In times of stress and danger such as come about as the result of an epidemic, many tragic and cruel phases of human nature are brought out, as well as many brave and unselfish ones.”</p><p><strong>William Crawford Gorgas</strong></p><p>      Crimean Congo hemorrhagic fever is endemic in certain parts of world. It is a <em><a title="Zoonotic" href="https://en.wikipedia.org/wiki/Zoonotic">zoonotic</a></em> disease and reservoirs are domestic and wild animals. It spreads by vector <em><a title="Hyalomma" href="https://en.wikipedia.org/wiki/Hyalomma">Hyalomma</a></em> tick or contact with infected animals or people or infected secretions. The clinical disease spectrum includes fever with flu like symptoms, hemorrhages and mortality rate of 10 – 40%. The incubation period is 1 – 3 days after a tick bite or 5 – 6 days following exposure to infected blood or tissues. The <em><a title="Influenza" href="https://en.wikipedia.org/wiki/Influenza">flu</a></em> – like symptoms may resolve after one week. In up to 75% of cases, however, signs of <em><a title="Hemorrhage" href="https://en.wikipedia.org/wiki/Hemorrhage">hemorrhage</a></em> appear within 3–5 days of the onset of illness in the form of skin bruises, nose bleeds, vomiting, and black stools. The <em><a title="Liver" href="https://en.wikipedia.org/wiki/Liver">liver</a></em> becomes swollen and tender. Patients usually begin to show signs of recovery after 9 – 10 days from when symptoms presented.<sup>1</sup> 10 – 40% of the cases result in mortality by the end of the second week of illness and may be attributed by hemorrhagic shock, hypovolemia, septacaemia, acute kidney failure, and acute respiratory distress syndrome.<sup>2</sup></p><p>      Pakistan has witnessed severe outbreaks in 2009 and 2010. In 2009, epidemic of Crimean Congo hemorrhagic fever was reported from Baluchistan. In September 2010, an outbreak was reported in Pakistan’s <em><a title="Khyber Pakhtunkhwa" href="https://en.wikipedia.org/wiki/Khyber_Pakhtunkhwa">Khyber Pakhtunkhwa</a></em> province. Poor diagnosis and record keeping has caused the extent of the epidemic to be uncertain, though some reports indicate over 100 cases, with a case – fatality rate above 10%. Crimean – Congo haemorrhagic fever is declared endemic in Pakistan. Human infections caused by the Crimean-Congo haemorrhagic virus have been occurring throughout the year and in wide geographic areas of the country. The seasonal spike has been reported this year and guidelines for prevention in public and health care providers are formulated. However, clear and rational policies from law enforcement agencies to avoid spread from endemic foci to other non-endemic areas through transportation of animals or contact with infected cases especially during Eid festivals are still needed. The transportation of animals is greatly increased during Eid festival in Pakistan and risk of epidemic is also increased. Law enforcement and Agricultural regulations require de-ticking farm animals before transportation or delivery for slaughter. Protocols for safety during slaughter and disposal of infected wastes should be formulated and implemented. In the case when feverish patients with evidence of bleeding are reported, emergency preparations for resuscitation or intensive care are required urgently. Moreover guidelines regarding suspected cases quarantine, body secretions and wastes isolation and disposal in health care facilities and standard precautions for laboratory workers, nursing staff and doctors should be adopted.</p><p>      Surveillance and laboratory diagnosis for early detection of cases, infection control measures in health care facilities and risk communication should be strengthened especially in high risk areas in the country. Seroprevalence of antibodies against Crimean Congo hemorrhagic virus in our community is still unknown.</p><p>      Preventive steps are simple but awareness in masses about Crimean congo hemorrhagic fever is the most important step. Some of the important steps for prevention are:</p><ul><li>Use a repellent containing 20% – 30% DEET or 20% Picaridin. Re-apply according to manufacturer’s directions.</li><li>Wear neutral – coloured and light – weight clothes, long – sleeved shirts and full pants. Tuck pants into socks for further protection.</li><li>Apply a permethrin spray or solution to clothing and gear.</li><li>When walking through grass lands avoid tall grasses and shrubs.</li><li>Carefully examine body, clothing, gear, and animals for ticks.</li><li>Apply sunscreen first followed by the repellent and preferably 20 minutes later.</li><li>Avoid coming into contact with the blood or tissues of animals. Healthcare practitioners should take appropriate infection control measures to prevent infection. Standard operating procedures to handle infectious materials and suspected cases should be displayed in clinical settings.</li><li>Laboratory staff should wear protective gear and waste disposal should be according to the protocols.</li></ul><p>      There is no effective commercially available vaccine or chemoprophylaxis against Crimean-Congo Hemorrhagic Fever. Thus efforts should be directed to prevent this disease by awareness in masses. Moreover, seroprevalence in general public as well as in specific groups including health care providers, laboratory workers, butchers, veterans and surgeons should be detected by screening and later on confirmed by Enzyme Linked Immunosorbant Assay (ELISA). Early case detection, quarantine of susceptible cases and adoption of standard protocols during management of patients can decrease the spread of this deadly virus.</p>


Author(s):  
Ali A Rabaan ◽  
Jaffar A Al-Tawfiq

Abstract Background There have been 2562 laboratory-confirmed cases of Middle East respiratory syndrome coronavirus (MERS-CoV) in 27 countries, with a case fatality rate of 34.5%. Data on the turnaround time (TAT) are lacking. We report TAT for MERS-CoV samples over time. Methods This is a monocentric study and the TAT for the reporting of 2664 MERS-CoV polymerase chain reaction (PCR) results were calculated in hours from the time of the receipt of respiratory samples to the reporting of the results. Results The mean TAT±standard deviation was significantly lower in 2018 compared with previous years (19.25±13.8). The percentage of samples processed within 24 h increased from 42.3% to 73.8% in 2015 and 2018, respectively (p&lt;0.0001). The mean TAT was 19.2 h in 2018 and was significantly lower than previous years. Conclusions The TAT for the MERS-CoV results decreased during the study period. Timely reporting of MERS-CoV PCR results may aid in further enhancing infection control measures.


Author(s):  
O. C. Adekunle ◽  
T. O. Oyakeye ◽  
Y. O. Adesiji

Infections associated with Staphylococcus aureus have high mortality rate and lead to economic loss with a long stay in the hospital. Methicillin-resistant S. aureus (MRSA) is one of the major nosocomial pathogens which are acquired in the health care facilities.  The objective of the study was to investigate the presence of MRSA in clinical sources and hospital environments. Samples were collected, cultured and identified. Also, the antibiotic susceptibility profile was done. Polymerase chain reaction (PCR) amplification of identification gene nuc- and the resistant gene, mecA were conducted. Sixty-three isolates were positive for S. aureus out of 370 clinical samples (urine, wound, nasal swabs and pus) and 37 positives out of 262 samples from hospital environments. Majority of the isolates were sensitive to cefoxitin, novobiocin and majority were resistant to ceftazidine, cloxacillin and augmentin. Seventy-one to ninety- five percent and 51-72% exhibited multi-drug resistance among clinical samples and hospital environments respectively. Both samples were positive for nuc and mec A genes. The detection of MRSA in hospital environments may pose a great danger to patients especially those of compromised status.


2021 ◽  
Author(s):  
Hadas Kon ◽  
Shirin Abramov ◽  
Sammy Frenk ◽  
David Schwartz ◽  
Ohad Shalom ◽  
...  

Abstract Background: It is essential to detect carriers of carbapenemase-producing Enterobacterales in order to implement infection control measures. The objectives of this study was to evaluate the NG-Test® CARBA 5 (CARBA 5) assay for detection of five carbapenemases and to assess the cross reactivity of other OXA-type carbapenemases with the OXA-48-like specific antibodies. Methods: A total of 197 Enterobacterales isolates were tested. To evaluate the cross reactivity, 73 carbapenem-resistant A. baumannii, harboring OXA-type variants, were tested. Polymerase chain reaction (PCR) served as gold standard for carbapenemase identification. Results: Excellent agreement was found between PCR and CARBA 5, for all but one isolate. The single false positive result (a blaSME positive S. marcescens isolate) was incorrectly positive for blaOXA-48 by CARBA 5. No cross reactivity was observed. The sensitivity and specificity were 100.0% and 98.0%, respectively. Conclusions: The CARBA 5 assay is highly sensitive and specific and is recommended as a tool for the detection of five carbapenemases.


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