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. 2018 Mar;24(3):563-570.
doi: 10.1016/j.bbmt.2017.11.001. Epub 2017 Nov 15.

Epidemiologic and Clinical Characteristics of Coronavirus and Bocavirus Respiratory Infections after Allogeneic Stem Cell Transplantation: A Prospective Single-Center Study

José Luis Piñana  1 , Silvia Madrid  2 , Ariadna Pérez  3 , Juan Carlos Hernández-Boluda  3 , Estela Giménez  2 , María José Terol  3 , Marisa Calabuig  3 , David Navarro  4 , Carlos Solano  5
Affiliations

Epidemiologic and Clinical Characteristics of Coronavirus and Bocavirus Respiratory Infections after Allogeneic Stem Cell Transplantation: A Prospective Single-Center Study

José Luis Piñana et al. Biol Blood Marrow Transplant. 2018 Mar.

Abstract

Epidemiologic data about coronaviruses (CoVs) and human bocavirus (HBoV) in the setting of allogeneic hematopoietic stem cell transplantation (allo-HSCT) are scarce. We conducted a prospective longitudinal study on respiratory viral infections (RVIs) in allo-HSCT recipients with respiratory symptoms from December 2013 until June 2016. Respiratory virus in upper and/or lower respiratory tract (URT and LRT) specimens were tested using Luminex xTAG RVP Fast v1 assay. Seventy-nine consecutive allo-HSCT recipients developed a total of 192 virologically documented RVI episodes over 30 months. The median follow-up after RVI was 388 days (range, 5 to 923). CoV or HBoV was detected in 27 of 192 episodes (14%); 18 of 79 recipients (23%) developed a total of 21 CoV RVI episodes, whereas 6 recipients (8%) had 1 HBoV RVI episode each. Fourteen CoV RVI episodes were limited to the URT, whereas 7 affected the LRT. Co-pathogens were detected in 8 (38%) CoV cases. Type OC43 CoV was the dominant type (48%) followed by NL63 (24%), KHU1 (19%), and 229E (9%); the CoV hospitalization rate was 19%, whereas mortality was 5% (1 patient without any other microbiologic documentation). Among the 6 recipients with HBoV (3%), only 1 had LRT involvement and no one died from respiratory failure. In 5 cases (83%) HBoV was detected along with other viral co-pathogens. CoV RVIs are common after allo-HSCT, and in a significant proportion of cases CoV progressed to LRT and showed moderate to severe clinical features. In contrast, HBoV RVIs were rare and mostly presented in the context of co-infections.

Keywords: Allogeneic stem cell transplantation; Bocavirus; Community-acquired respiratory virus; Coronavirus; Respiratory virus infection; Viral pneumonia.

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Figures

Figure 1
Figure 1
Type of community-acquired respiratory virus according to the month of detection.
Figure 2
Figure 2
Type of co-infections according to the month of detection.
Figure 3
Figure 3
Distribution of CoV viral strains.
See this image and copyright information in PMC

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