The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms
Abstract Background The neonatal intensive care unit (NICU) contains a unique cohort of patients with underdeveloped immune systems and nascent microbiome communities. Patients often spend several months in the same room, and it has been previously shown that the gut microbiomes of these infants oft...
Main Authors: | , , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
BMC
2018-06-01
|
Series: | Microbiome |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s40168-018-0493-5 |
id |
doaj-774b8012d1ff40208430861ffe230a97 |
---|---|
record_format |
Article |
spelling |
doaj-774b8012d1ff40208430861ffe230a972020-11-25T01:42:51ZengBMCMicrobiome2049-26182018-06-016111210.1186/s40168-018-0493-5The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit roomsBrandon Brooks0Matthew R. Olm1Brian A. Firek2Robyn Baker3David Geller-McGrath4Sophia R. Reimer5Karina R. Soenjoyo6Jennifer S. Yip7Dylan Dahan8Brian C. Thomas9Michael J. Morowitz10Jillian F. Banfield11Department of Plant and Microbial Biology, University of CaliforniaDepartment of Plant and Microbial Biology, University of CaliforniaUniversity of Pittsburgh School of MedicineDivision of Newborn Medicine, Children’s Hospital of Pittsburgh of UPMCDepartment of Earth and Planetary Sciences, University of CaliforniaDepartment of Earth and Planetary Sciences, University of CaliforniaDepartment of Earth and Planetary Sciences, University of CaliforniaDepartment of Earth and Planetary Sciences, University of CaliforniaDepartment of Biology, Bard CollegeDepartment of Earth and Planetary Sciences, University of CaliforniaUniversity of Pittsburgh School of MedicineDepartment of Earth and Planetary Sciences, University of CaliforniaAbstract Background The neonatal intensive care unit (NICU) contains a unique cohort of patients with underdeveloped immune systems and nascent microbiome communities. Patients often spend several months in the same room, and it has been previously shown that the gut microbiomes of these infants often resemble the microbes found in the NICU. Little is known, however, about the identity, persistence, and absolute abundance of NICU room-associated bacteria over long stretches of time. Here, we couple droplet digital PCR (ddPCR), 16S rRNA gene surveys, and recently published metagenomics data from infant gut samples to infer the extent to which the NICU microbiome is shaped by its room occupants. Results Over 2832 swabs, wipes, and air samples were collected from 16 private-style NICU rooms housing very low birth weight (< 1500 g), premature (< 31 weeks’ gestation) infants. For each infant, room samples were collected daily, Monday through Friday, for 1 month. The first samples from the first infant and the last samples from the last infant were collected 383 days apart. Twenty-two NICU locations spanning room surfaces, hands, electronics, sink basins, and air were collected. Results point to an incredibly simple room community where 5–10 taxa, mostly skin-associated, account for over 50% of the amplicon reads. Biomass estimates reveal four to five orders of magnitude difference between the least to the most dense microbial communities, air, and sink basins, respectively. Biomass trends from bioaerosol samples and petri dish dust collectors suggest occupancy to be a main driver of suspended biological particles within the NICU. Using a machine learning algorithm to classify the origin of room samples, we show that each room has a unique microbial fingerprint. Several important taxa driving this model were dominant gut colonizers of infants housed within each room. Conclusions Despite regular cleaning of hospital surfaces, bacterial biomass was detectable at varying densities. A room-specific microbiome signature was detected, suggesting microbes seeding NICU surfaces are sourced from reservoirs within the room and that these reservoirs contain actively dividing cells. Collectively, the data suggests that hospitalized infants, in combination with their caregivers, shape the microbiome of NICU rooms.http://link.springer.com/article/10.1186/s40168-018-0493-5Infant gutMicrobiomeBuilt environmentNeonatal intensive care unit |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Brandon Brooks Matthew R. Olm Brian A. Firek Robyn Baker David Geller-McGrath Sophia R. Reimer Karina R. Soenjoyo Jennifer S. Yip Dylan Dahan Brian C. Thomas Michael J. Morowitz Jillian F. Banfield |
spellingShingle |
Brandon Brooks Matthew R. Olm Brian A. Firek Robyn Baker David Geller-McGrath Sophia R. Reimer Karina R. Soenjoyo Jennifer S. Yip Dylan Dahan Brian C. Thomas Michael J. Morowitz Jillian F. Banfield The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms Microbiome Infant gut Microbiome Built environment Neonatal intensive care unit |
author_facet |
Brandon Brooks Matthew R. Olm Brian A. Firek Robyn Baker David Geller-McGrath Sophia R. Reimer Karina R. Soenjoyo Jennifer S. Yip Dylan Dahan Brian C. Thomas Michael J. Morowitz Jillian F. Banfield |
author_sort |
Brandon Brooks |
title |
The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
title_short |
The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
title_full |
The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
title_fullStr |
The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
title_full_unstemmed |
The developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
title_sort |
developing premature infant gut microbiome is a major factor shaping the microbiome of neonatal intensive care unit rooms |
publisher |
BMC |
series |
Microbiome |
issn |
2049-2618 |
publishDate |
2018-06-01 |
description |
Abstract Background The neonatal intensive care unit (NICU) contains a unique cohort of patients with underdeveloped immune systems and nascent microbiome communities. Patients often spend several months in the same room, and it has been previously shown that the gut microbiomes of these infants often resemble the microbes found in the NICU. Little is known, however, about the identity, persistence, and absolute abundance of NICU room-associated bacteria over long stretches of time. Here, we couple droplet digital PCR (ddPCR), 16S rRNA gene surveys, and recently published metagenomics data from infant gut samples to infer the extent to which the NICU microbiome is shaped by its room occupants. Results Over 2832 swabs, wipes, and air samples were collected from 16 private-style NICU rooms housing very low birth weight (< 1500 g), premature (< 31 weeks’ gestation) infants. For each infant, room samples were collected daily, Monday through Friday, for 1 month. The first samples from the first infant and the last samples from the last infant were collected 383 days apart. Twenty-two NICU locations spanning room surfaces, hands, electronics, sink basins, and air were collected. Results point to an incredibly simple room community where 5–10 taxa, mostly skin-associated, account for over 50% of the amplicon reads. Biomass estimates reveal four to five orders of magnitude difference between the least to the most dense microbial communities, air, and sink basins, respectively. Biomass trends from bioaerosol samples and petri dish dust collectors suggest occupancy to be a main driver of suspended biological particles within the NICU. Using a machine learning algorithm to classify the origin of room samples, we show that each room has a unique microbial fingerprint. Several important taxa driving this model were dominant gut colonizers of infants housed within each room. Conclusions Despite regular cleaning of hospital surfaces, bacterial biomass was detectable at varying densities. A room-specific microbiome signature was detected, suggesting microbes seeding NICU surfaces are sourced from reservoirs within the room and that these reservoirs contain actively dividing cells. Collectively, the data suggests that hospitalized infants, in combination with their caregivers, shape the microbiome of NICU rooms. |
topic |
Infant gut Microbiome Built environment Neonatal intensive care unit |
url |
http://link.springer.com/article/10.1186/s40168-018-0493-5 |
work_keys_str_mv |
AT brandonbrooks thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT matthewrolm thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT brianafirek thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT robynbaker thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT davidgellermcgrath thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT sophiarreimer thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT karinarsoenjoyo thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT jennifersyip thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT dylandahan thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT briancthomas thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT michaeljmorowitz thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT jillianfbanfield thedevelopingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT brandonbrooks developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT matthewrolm developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT brianafirek developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT robynbaker developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT davidgellermcgrath developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT sophiarreimer developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT karinarsoenjoyo developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT jennifersyip developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT dylandahan developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT briancthomas developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT michaeljmorowitz developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms AT jillianfbanfield developingprematureinfantgutmicrobiomeisamajorfactorshapingthemicrobiomeofneonatalintensivecareunitrooms |
_version_ |
1725034731922259968 |