Article
Microbiology
Subhankar Mukherjee, Punyasloke Bhadury, Shravani Mitra, Sharmi Naha, Bijan Saha, Shanta Dutta, Sulagna Basu
Summary: This study characterized hvKP/CR-hvKP strains causing neonatal sepsis in terms of resistance and virulence. About 26% of the strains belonged to hvKP, with hvKP-K2 being the prevalent pathotype. The majority of the strains exhibited strong biofilm-forming and high serum resistance ability. Additionally, this study reported for the first time the NDM-1-producing hvKP ST11-K2 and ST15-K54 strains causing fatal neonatal sepsis.
MICROBIOLOGY SPECTRUM
(2023)
Review
Biochemistry & Molecular Biology
Karolina Stojowska-Swedrzynska, Adrianna Lupkowska, Dorota Kuczynska-Wisnik, Ewa Laskowska
Summary: Klebsiella pneumoniae is a common pathogen responsible for various infections, and its multidrug resistance has been recognized as a significant public health threat. Heteroresistance, a frequent phenotype in pathogens, may be associated with an increased risk of recurrent infections and treatment failure in K. pneumoniae.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Infectious Diseases
Sharmi Naha, Kirsty Sands, Suchandra Mukherjee, Shanta Dutta, Sulagna Basu
Summary: This study aimed to understand the susceptibility trend and molecular mechanisms of colistin resistance in neonatal isolates over a 12 year period. The results showed that colistin-resistant Klebsiella pneumoniae had multiple mechanisms of resistance, including overexpression of two-component systems and AcrAB-TolC pump and its regulators. The presence of strains with dual carbapenemases causing sepsis in neonates is alarming.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2022)
Article
Infectious Diseases
Ariesti Karmila, Indrayady Barchia, Afifa Ramandati, Lixin Zhang
Summary: Culture-negative neonatal sepsis is a significant issue in Palembang, Indonesia, with a high mortality rate and a prevalence of multidrug-resistant bacteria. This study provides insights into the epidemiology and antimicrobial resistance patterns of neonatal sepsis in the region.
JOURNAL OF INFECTION IN DEVELOPING COUNTRIES
(2022)
Article
Infectious Diseases
Jinchun Li, Shiwen Xia, Yong Liu, Shasha Zhang, Zhengjiang Jin
Summary: This study evaluated the microorganisms and antibiotic susceptibility pattern in neonatal septicemia, and investigated factors associated with the length of ICU stay. The results showed that the main pathogens were Gram-positive and Gram-negative bacteria, with different sensitivities to antibiotics. Factors such as patient transfer, septicemia during hospitalization, and complications were related to prolonged ICU stay.
INFECTION AND DRUG RESISTANCE
(2022)
Article
Pharmacology & Pharmacy
Noha M. Elhosseiny, Tamer M. Samir, Aliaa A. Ali, Amani A. El-Kholy, Ahmed S. Attia
Summary: Neonatal sepsis is a major cause of infant mortality, with delays in pinpointing the causative agent exacerbating the problem. Through bioinformatics and proteomics analyses, a promising target - a 19 amino acid peptide specific to Klebsiella pneumoniae - has been identified for rapid identification of the causative agent in neonatal sepsis cases.
Article
Microbiology
Henry Zamarano, Benson Musinguzi, Immaculate Kabajulizi, Godfrey Manirakiza, Walker Guti, Ivan Muhwezi, Ayan Ahmed Hussein, Agnes Baweera, Boaz Kabahinda, Herbert Itabangi, Joel Bazira, Taseera Kabanda
Summary: This study aimed to determine the prevalence, bacteriological profile, antibiotic susceptibility and factors associated with neonatal septicaemia among neonates suspected to sepsis at Kilembe Mines Hospital. Blood cultures were positive in 59.0% cases, with Gram negative organisms being the most implicated. Multi-drug resistant organisms were isolated, caution is required in antibiotic therapy selection.
Review
Medicine, General & Internal
Subhankar Mukherjee, Shravani Mitra, Shanta Dutta, Sulagna Basu
Summary: The convergence of a vulnerable population with a notorious pathogen, such as Klebsiella pneumoniae, causing sepsis in neonates has led to high mortality rates, particularly in low-income and lower-middle-income countries. The multidrug-resistant and hypervirulent nature of K. pneumoniae has limited treatment options, especially with the emergence of carbapenem-resistant strains. The global threat of carbapenem-resistant K. pneumoniae and hypervirulent strains poses a serious challenge to clinicians in managing neonatal sepsis.
FRONTIERS IN MEDICINE
(2021)
Article
Infectious Diseases
Kuan-Jen Chen, Yen-Po Chen, Yi-Hsing Chen, Laura Liu, Nan-Kai Wang, An-Ning Chao, Wei-Chi Wu, Yih-Shiou Hwang, Hung-Da Chou, Eugene Yu-Chuan Kang, Yen-Ting Chen, Ming-Hui Sun, Chi-Chun Lai
Summary: This study investigates the infection sources and antibiotic susceptibilities of Klebsiella pneumoniae in patients with endogenous K. pneumoniae endophthalmitis in Northern Taiwan. Pyogenic liver abscess was identified as the major infection source, and K. pneumoniae showed high susceptibility to ceftazidime and amikacin.
Article
Immunology
Tomohiro Hosoda, Sohei Harada, Koh Okamoto, Sumire Ishino, Makoto Kaneko, Masahiro Suzuki, Ryota Ito, Miyuki Mizoguchi
Summary: In patients with coronavirus disease who deteriorate rapidly, co-infections by bacterial and fungal pathogens, including hypervirulent Klebsiella pneumoniae in eastern Asia, should be considered in the differential diagnosis.
EMERGING INFECTIOUS DISEASES
(2021)
Review
Biochemistry & Molecular Biology
Anne L. McCartney, Lesley Hoyles
Summary: The microbiota of preterm infants is mainly composed of Enterobacteriaceae, Enterococcus, and Staphylococcus. The development of this microbiota is predictable and influenced by microbe-microbe interactions. Preterm infants, due to their immature immune system, are susceptible to infections. The preterm gut microbiota has been associated with diseases such as necrotizing enterocolitis and sepsis. Staphylococci help establish/maintain gastrointestinal Klebsiella populations in preterm infants, while enterococci inhibit them. The mechanisms underlying these interactions are poorly understood.
BIOCHEMICAL SOCIETY TRANSACTIONS
(2023)
Article
Pediatrics
Nour Abdallah Ba-alwi, John Ogooluwa Aremu, Michael Ntim, Russel Takam, Mwanaidi Amiri Msuya, Hamid Nassor, Hong Ji
Summary: Neonatal sepsis remains a major cause of death and morbidity in newborns worldwide. This study found that very low birth weight, early-onset sepsis, clinical and laboratory parameters such as lethargy, vomiting, and hyperglycemia, sepsis with Gram-negative bacteria, and being on mechanical ventilation are strong predictors of death in neonatal sepsis.
FRONTIERS IN PEDIATRICS
(2022)
Article
Microbiology
Jane F. Turton, Claire Perry, Alleyna Claxton
Summary: Plasmids containing heavy metal resistance genes are a prominent feature of Klebsiella isolates from neonatal sepsis. These plasmids share common elements with virulence and antibiotic resistance plasmids, potentially providing a basis for the evolution of such plasmids.
JOURNAL OF MEDICAL MICROBIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Aline Castro Rodrigues Lucena, Mariana Galvao Ferrarini, Willian Klassen de Oliveira, Bruna Hilzendeger Marcon, Luis Gustavo Morello, Lysangela Ronalte Alves, Helisson Faoro
Summary: Klebsiella pneumoniae is a nosocomial pathogen that spreads multidrug-resistant (MDR) and extensively drug-resistant (XDR) strains. They release outer membrane vesicles (OMVs) containing virulence and resistance factors, which may be associated with pathogenicity, survival, stress response, and resistance dissemination.
Article
Biochemistry & Molecular Biology
Zackery P. Bulman, Xing Tan, Ting-Yu Chu, Yanqin Huang, Amisha P. Rana, Nidhi Singh, Stephanie A. Flowers, Yasuhiro Kyono, Barry N. Kreiswirth, Liang Chen
Summary: The combination of carbapenem resistance and hypervirulence in Klebsiella pneumoniae poses an emerging and urgent threat. Transcriptomic analysis suggests that altered transcription of multiple key pathways contributes to antibiotic tolerance in carbapenem-resistant K. pneumoniae with hypervirulence plasmids.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2022)
Letter
Dermatology
Jami Rupa Ramani, Hima Gopinath, Prabhakaran Nagendran, Pratyusha Ganne, Thirunavukkarasu Arun Babu
INTERNATIONAL JOURNAL OF DERMATOLOGY
(2022)
Letter
Pediatrics
Thirunavukkarasu Arun Babu
EUROPEAN JOURNAL OF PEDIATRICS
(2022)
Letter
Pediatrics
Brundavanam Venkata Krishna Sai, Hema Kumar, Thirunavukkarasu Arun Babu, Raghuvamsi Chaitra, Diptirekha Satapathy, Vinoth Kumar Kalidoss
INDIAN JOURNAL OF PEDIATRICS
(2022)
Article
Public, Environmental & Occupational Health
Thirunavukkarasu Arun Babu, Vijayan Sharmila, Prabhakaran Nagendran
Summary: This article presents a rare case of Norwegian scabies in a neonate.
Article
Public, Environmental & Occupational Health
Yuvaraj Krishnamoorthy, Komala Ezhumalai, Sharan Murali, Sathish Rajaa, Marie Gilbert Majella, Sonali Sarkar, Subitha Lakshminarayanan, Noyal Mariya Joseph, Govindarajan Soundappan, Senbagavalli Prakash Babu, Charles Horsburgh, Natasha Hochberg, W. Evan Johnson, Selby Knudsen, Sri Ram Pentakota, Padmini Salgame, Gautam Roy, Jerrold Ellner
Summary: A prognostic-scoring model was developed to predict death among newly diagnosed drug sensitive pulmonary TB patients in South India. The model, which had a discriminative power of 0.81, could aid clinicians and policy makers in devising targeted interventions to reduce TB mortality.
JOURNAL OF PUBLIC HEALTH
(2023)
Letter
Infectious Diseases
S. Knudsen, S. P. Babu, J. Ramakrishnan, H. E. Jenkins, N. Joseph, C. Cintron, P. B. Narasimhan, P. Salgame, N. S. Hochberg, D. L. Hom, J. Ellner, C. R. Horsburgh Jr, S. Sarkar
INTERNATIONAL JOURNAL OF TUBERCULOSIS AND LUNG DISEASE
(2023)
Letter
Pediatrics
Diptirekha Satapathy, Thirunavukkarasu Arun Babu
PEDIATRIC PULMONOLOGY
(2023)
Article
Immunology
Krishnapriya Krishnakumariamma, Kalaiarasan Ellappan, Muthaiah Muthuraj, Kadhiravan Tamilarasu, Saka Vinod Kumar, Noyal Mariya Joseph
Summary: The study aimed to standardize RT-PCR for the detection of Mtb in CSF samples and compare its performance with Xpert, MGIT960, and MPCR for TBM diagnosis. IS6110RT-PCR was found to be highly sensitive and may aid in the initial screening of suspected TB cases.
INDIAN JOURNAL OF MEDICAL MICROBIOLOGY
(2023)
Article
Gastroenterology & Hepatology
Dinesh Kumar Narayanasamy, Thirunavukkarasu Arun Babu, Jean Fredrick, Devi Kittu
Summary: This study aimed to describe the clinical profile and outcome of pediatric scrub typhus (ST) with elevated hepatic transaminase (HT). The results showed that 45.8% of ST-positive children had associated HT elevation. The common symptoms and signs were cough, vomiting, myalgia, hepatomegaly, splenomegaly, and generalized lymphadenopathy. Thrombocytopenia and anemia were frequently seen laboratory abnormalities. HT elevation was associated with severe forms of ST, leading to prolonged fever clearance time and duration of hospital stay.
INDIAN JOURNAL OF GASTROENTEROLOGY
(2023)
Editorial Material
Pediatrics
Thirunavukkarasu Arun Babu, Ballambattu Vishnu Bhat
INDIAN JOURNAL OF PEDIATRICS
(2023)
Article
Medicine, General & Internal
Bellam S. Subhasree, Noyal Mariya Joseph, Anandhalakshmi Subramanian, Ahmed Musa Al-Hakami, Reba Kanungo
Summary: This study aims to assess the frequency and outcomes of de-escalation in patients with urinary tract infections (UTI). The results show that only 42% of patients underwent de-escalation, with legitimate reasons for omission observed in 21.3% of cases. De-escalation was associated with a reduction in treatment duration and reinfection rate, but had no effect on mortality rate. Therefore, de-escalation is a feasible and safe strategy that should be routinely practiced.
ACTA MEDICA MEDITERRANEA
(2023)
Article
Pediatrics
Brundavanam Venkata Krishna Sai, Hema Kumar, Thirunavukkarasu Arun Babu, Raghuvamsi Chaitra, Diptirekha Satapathy, Vinoth Kumar Kalidoss
Summary: This study describes the clinical presentation, laboratory abnormalities, and outcome of children with Multisystem Inflammatory Syndrome in Children (MIS-C) following acute COVID-19 infection. The study included 78 children under 12 years of age who met the diagnostic criteria for MIS-C. Most cases occurred 2-6 weeks after the onset of acute COVID-19 infection, with common symptoms including lethargy, poor feeding, vomiting, abdominal pain, loose stools, cough, and cold. The gastrointestinal system was the most commonly affected, followed by the hepatic, renal, and cardiovascular systems. Treatment mainly involved the use of IVIg and steroids, with a favorable short-term outcome and low mortality rate.
EGYPTIAN PEDIATRIC ASSOCIATION GAZETTE
(2023)
Article
Dermatology
Thirunavukkarasu Arun Babu, Prabhakaran Nagendran
Summary: This article presents seven cases of children in Southern India who underwent skin branding for jaundice, highlighting the importance of healthcare providers being aware of cultural practices to avoid misdiagnosis.
PEDIATRIC DERMATOLOGY
(2023)
Meeting Abstract
Immunology
Vaishnavi Kaipilyawar, Yue Zhao, Xutao Wang, Noyal M. Joseph, Senbagavalli Prakash Babu, Natasha S. Hochberg, Sonali Sarkar, Charles Horsburgh, Jerrold J. Ellner, William Evan Johnson, Padmini Salgame
JOURNAL OF IMMUNOLOGY
(2022)
Letter
Pediatrics
Thirunavukkarasu Arun Babu, Vijayan Sharmila, Nagadesi Sirisha