Rare coexistence of disease or pathology Background:Bacterial Infections, especially, of the respiratory system, have been reported as one of the medical concerns in patients with the Coronavirus Disease-2019 (COVID-19), particularly those with multiple co-morbidities. We present a case of a diabetic patient with co-infection of multi-drug-resistant Kocuria rosea and methicillin-resistant Staphylococcus aureus (MRSA) who contracted COVID-19. Case Report:A 72-year-old man with diabetes presented with symptoms including cough, chest pain, urinary incontinence, respiratory distress, sore throat, fever, diarrhea, loss of taste, and anosmia and was confirmed to have COVID-19. At admission, he was also found to have sepsis. MRSA was isolated in conjunction with another organism, resembling coagulase-negative Staphylococcus, which was misidentified using commercial biochemical testing systems. The strain was finally confirmed to be Kocuria rosea by 16S rRNA gene sequencing. Both strains were highly resistant to multiple classes of antibiotics, but the Kocuria rosea was resistant to all the cephalosporins, fluoroquinolones, and macrolides tested. The use of ceftriaxone and ciprofloxacin did not improve his condition, which ultimately led to his death. Conclusions:This case report shows that the presence of multi-drug-resistant bacteria infections can be fatal in patients with COVID-19, especially in patients with other co-morbidities like diabetes. This case report also shows that biochemical testing may be inadequate in identifying emerging bacterial infections and there is a need to include proper bacterial screening and treatment in the management of COVID-19, especially in patients with other co-morbidities and with indwelling devices.
Background: Urinary Tract Infection (UTI) is the most prevalent bacterial infection in developing countries. UTI is sometimes asymptomatic. The occurrence of UTI in pregnancy can result in complications such as premature or low-birth-weight babies. Escherichia coli is the most common cause of UTI followed by Staphylococci species. However, E.coli associated UTI has been well studied while there is paucity of data on the virulence and resistance of Staphylococci-associated UTIs in women. This study aimed to characterize the virulence and resistance genes in Staphylococci species isolated from the urine of pregnant women. Methods: This was a cross-sectional study involving pregnant women attending ante-natal clinic in Lagos State, Nigeria. Clean catch midstream urine specimens were collected from the women and cultured on appropriate agar. Bacteria were identified using both biochemical and molecular methods and evaluated for resistance to antibiotics. Polymerase chain reaction was used to detect the mecA and blaZ resistance genes and the PVL and TSST virulence genes. Results: Staphylococci species were isolated from 21 (26.25%) of the 80 urine samples of which 7 (29%) were Staphylococcus aureus and 17 (71%) coagulase-negative staphylococcus (CoNS). S. epidermidis and S. saprophyticus were the most commonly isolated CoNS. All the isolates tested were resistant to cotrimoxazole, cloxacillin, erythromycin, ampicillin, amoxicillin-clavulanate, and tetracycline. Both blaZ and the mecA genes were detected in the isolates that were phenotypically susceptible to methicillin and cefoxitin. There was an occurrence of the mecA, blaZ and PVL genes in S. saprophyticus in patients who were co-infected with S. aureus. Conclusion: UTI caused by Staphylococci is common among pregnant women. There is a need to consider staphylococcal associated UTI screening in both symptomatic and asymptomatic cases of UTI in pregnant women.
Intranasal sprays containing Bacillus species are being researched for treating viral respiratory tract infections. The aim of this study was to assess the relationship between the nasal carriage ofBacillusand COVID-19 severity. This was a cross-sectional study that collected nasopharyngeal samples from adults 18 years and above visiting two COVID-19 testing centers in Lagos, Nigeria between September 2020 and September 2021. Bacillus species were cultured from the respiratory samples and confirmed using molecular methods. The dependent variable was COVID-19 status classified as negative, asymptomatic, mild, or severe. The independent variable was the nasal carriage of Bacillus species. Multinomial regression analysis was done to determine the association between nasal carriage of Bacillus and COVID-19 severity after adjusting for age, sex, and co-morbidity status. About 388 participants were included in the study with a mean (standard deviation) age of 40.05 (13.563) years. The majority (61.1%) of the participants were male, 100 (25.8%) had severe COVID-19, 130 (33.5%) had pre-existing comorbidity, and 76 (19.6%) had Bacillus cultured from their nasopharyngeal specimen. Bacillus species presence was significantly associated with higher odds of severe COVID-19 compared to having a negative COVID-19 status. However, the presence of Bacillus species was significantly associated with lower odds of severe COVID-19 compared to having a mild COVID-19 status. The study suggests that nasal carriage of Bacillus species may substantially impact the clinical course of COVID-19. This study supports the exploration ofBacillusspecies in the prevention and management of viral respiratory tract infections.
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