Conventional tube culture systems have long been the mainstay in clinical virology for the growth and identification of viruses from clinical specimens. Innovations such as centrifugation-enhanced shell vial and multiwell plate cultures and the use of genetically engineered and mixed cell lines, coupled with faster detection of viral replication, have allowed for reasonable turnaround times for even some of the most slowly growing clinically important human viruses. However, molecular methods, in particular, the PCR, have usurped the role of viral culture in many laboratories, limiting the use of this traditional method of virus detection or replacing it altogether. Advances and improvements in molecular technology over time have also resulted in newer generations of more rapid and accurate molecular assays for the detection, quantification, and genetic characterization of viruses. For this point-counterpoint, we have asked two individuals, Richard L. Hodinka of the Children's Hospital of Philadelphia, a clinical virologist whose laboratory has completely eliminated viral culture in favor of molecular methods, and Laurent Kaiser, head of the Virology Laboratory at the University of Geneva Hospital, who continues to be a strong advocate of viral culture, to discuss the relevance of viral culture in the molecular age.
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http://dx.doi.org/10.1128/JCM.02593-12 | DOI Listing |
Narra J
December 2024
Department of Dermatology Venereology and Aesthetic, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Varicella, caused by the varicella-zoster virus (VZV), is rarely reported in the elderly but often complicates with pneumonia. In this case report, we present a case of varicella pneumonia in the elderly. A 60-year-old man presented to the emergency room with vesicles filled with clear fluid that had appeared all over the body for the past four days.
View Article and Find Full Text PDFCommun Biol
January 2025
Division of Microbiology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1, Komatsuhima, Aoba-ku, Sendai, Miyagi, 981-8558, Japan.
Future pandemic threats may be caused by novel coronaviruses and influenza A viruses. Here we show that when directly added to a cell culture, 12mer guanine RNA (G12) and its phosphorothioate-linked derivatives (G12(S)), rapidly entered cytoplasm and suppressed the propagation of human coronaviruses and influenza A viruses to between 1/100 and nearly 1/1000 of normal virus infectivity without cellular toxicity and induction of innate immunity. Moreover, G12(S) alleviated the weight loss caused by coronavirus infection in mice.
View Article and Find Full Text PDFCommun Biol
January 2025
CIRI, Centre International de Recherche en Infectiologie, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Lyon, France.
We have assessed antiviral activity and induction of protective immunity of fusion-inhibitory lipopeptides derived from the C-terminal heptad-repeat domain of SARS-CoV-2 spike glycoprotein in transgenic mice expressing human ACE2 (K18-hACE2). The lipopeptides block SARS-CoV-2 infection in cell lines and lung-derived organotypic cultures. Intranasal administration in mice allows the maintenance of homeostatic transcriptomic immune profile in lungs, prevents body-weight loss, decreases viral load and shedding, and protects mice from death caused by SARS-CoV-2 variants.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Anesthesiology, Medical Faculty, Heidelberg University, 69120, Heidelberg, Germany.
Invasive infections with Aspergillus fumigatus in ICU patients are linked to high morbidity and mortality. Diagnosing invasive pulmonary aspergillosis (IPA) in non-immunosuppressed patients is difficult, as Aspergillus antigen (galactomannan [GM]) may have other causes. This retrospective study analyzed 160 ICU surgical patients with positive GM in broncho-alveolar lavage fluid (BALF), classifying them based on AspICU criteria for suspected IPA (pIPA) or aspiration.
View Article and Find Full Text PDFPoult Sci
January 2025
Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Taian, 271017, China; Shandong Provincial Key Laboratory of Zoonoses, Shandong, Taian, 271017, China. Electronic address:
Duck circovirus (DuCV) infected multiple breeds of ducks and was widespread in duck factories worldwide. Infected ducks exhibited feathering disorder, growth retardation and immunosuppression, which lead to secondary infection with other pathogens easily. But till now, there has been little research on the study of DuCV due to the absence of appropriate cultural measures.
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