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return kwic search for use out of >500 occurrences
821596 occurrences (No.5 in the rank) during 5 years in the PubMed. [cache]

23) The study objective was to estimate infection risks per transport for first responders and quantify how first responder use of N95 respirators and patient use of cloth masks can reduce these risks.

--- ABSTRACT ---

PMID:34129448 DOI:10.1080/15459624.2021.1926468

2021 Journal of occupational and environmental hygiene

* Respirators, face masks, and their risk reductions via multiple transmission routes for first responders within an ambulance.

- First responders may have high SARS-CoV-2 infection risks due to working with potentially infected patients in enclosed spaces. The study objective was to estimate infection risks per transport for first responders and quantify how first responder use of N95 respirators and patient use of cloth masks can reduce these risks. A model was developed for two Scenarios: an ambulance transport with a patient actively emitting a virus in small aerosols that could lead to airborne transmission (Scenario 1) and a subsequent transport with the same respirator or mask use conditions, an uninfected patient; and remaining airborne SARS-CoV-2 and contaminated surfaces due to aerosol deposition from the previous transport (Scenario 2). A compartmental Monte Carlo simulation model was used to estimate the dispersion and deposition of SARS-CoV-2 and subsequent infection risks for first responders, accounting for variability and uncertainty in input parameters (i.e., transport duration, transfer efficiencies, SARS-CoV-2 emission rates from infected patients, etc.). Infection risk distributions and changes in concentration on hands and surfaces over time were estimated across sub-Scenarios of first responder respirator use and patient cloth mask use. For Scenario 1, predicted mean infection risks were reduced by 69%, 48%, and 85% from a baseline risk (no respirators or face masks used) of 2.9 × 10^-2 ± 3.4 × 10^-2 when simulated first responders wore respirators, the patient wore a cloth mask, and when first responders and the patient wore respirators or a cloth mask, respectively. For Scenario 2, infection risk reductions for these same Scenarios were 69%, 50%, and 85%, respectively (baseline risk of 7.2 × 10^-3 ± 1.0 × 10^-2). While aerosol transmission routes contributed more to viral dose in Scenario 1, our simulations demonstrate the ability of face masks worn by patients to additionally reduce surface transmission by reducing viral deposition on surfaces. Based on these simulations, we recommend the patient wear a face mask and first responders wear respirators, when possible, and disinfection should prioritize high use equipment.

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(1)183 of	(9)6 as	(17)3 are	(25)2 co-design
(2)43 in	(10)6 for	(18)3 disorder,	(26)2 data
(3)36 and	(11)5 this	(19)3 on	(27)2 has
(4)25 null	(12)4 cases	(20)3 or	(28)2 included
(5)18 the	(13)4 disorders	(21)2 an	(29)2 may
(6)9 a	(14)4 to	(22)2 appears
(7)8 is	(15)4 with	(23)2 arginine
(8)7 disorder	(16)3 alcohol	(24)2 but

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--- WordNet output for use --- =>利用, 使う, 利用する, (体, 能力など)を働かす, 使用, 利用法 Overview of noun use The noun use has 7 senses (first 6 from tagged texts) 1. (90) use, usage, utilization, utilisation, employment, exercise -- (the act of using; "he warned against the use of narcotic drugs"; "skilled in the utilization of computers") 2. (18) function, purpose, role, use -- (what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?") 3. (7) use -- (a particular service; "he put his knowledge to good use"; "patrons have their uses") 4. (1) consumption, economic consumption, usance, use, use of goods and services -- ((economics) the utilization of economic goods to satisfy needs or in manufacturing; "the consumption of energy has increased steadily") 5. (1) habit, use -- ((psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition; "owls have nocturnal habits"; "she had a habit twirling the ends of her hair"; "long use had hardened him to it") 6. (1) manipulation, use -- (exerting shrewd or devious influence especially for one's own advantage; "his manipulation of his friends was scandalous") 7. use, enjoyment -- ((law) the exercise of the legal right to enjoy the benefits of owning property; "we were given the use of his boat") Overview of verb use The verb use has 6 senses (first 3 from tagged texts) 1. (603) use, utilize, utilise, apply, employ -- (put into service; make work or employ for a particular purpose or for its inherent or natural purpose; "use your head!"; "we only use Spanish at home"; "I can't use this tool"; "Apply a magnetic field here"; "This thinking was applied to many projects"; "How do you utilize this tool?"; "I apply this rule to get good results"; "use the plastic bags to store the food"; "He doesn't know how to use a computer") 2. (12) use, habituate -- (take or consume (regularly or habitually); "She uses drugs rarely") 3. (8) use, expend -- (use up, consume fully; "The legislature expended its time on school questions") 4. use -- (seek or achieve an end by using to one's advantage; "She uses her influential friends to get jobs"; "The president's wife used her good connections") 5. practice, apply, use -- (avail oneself to; "apply a principle"; "practice a religion"; "use care when going down the stairs"; "use your common sense"; "practice non-violent resistance") 6. use -- (habitually do something (use only in the past tense); "She used to call her mother every week but now she calls only occasionally"; "I used to get sick when I ate in that dining hall"; "They used to vacation in the Bahamas") --- WordNet end ---