Characterization of indoor bioaerosols from a hospital ward in a tropical setting

Sudharsanam, Suchithra; Swaminathan, S.; Ramalingam, A.; Thangavel, Gurusamy; Annamalai, Radha; Steinberg, Ralf; Balakrishnan, Kalpana; Srikanth, Padma

doi:10.4314/ahs.v12i2.22

Cited by 66 publications

(63 citation statements)

References 10 publications

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“…The proportion of particular groups of bacterial and fungal bioaerosols in relation to the total microbiota isolated from samples did not differ from common trends [5,6,8,16,18,19,20,21].…”

Section: Discussionmentioning

confidence: 92%

“…Here, the sampling was carried out by filtration with MCES cellulose filters with the diameter of 0.45 µm [5]. In a study in India using a personal sampler employing a filtration method with a gelatine filter in hospital wards, the results showed the range 3.7 × 10 3 CFU/m 3 to 1.9 × 10 5 CFU/m 3 for bacteria, 0 to 1.5 × 10 4 CFU/m 3 for fungi [18]. Analyses of the microbiological status of hospital office spaces have also been undertaken by several authors.…”

Section: Discussionmentioning

confidence: 99%

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Microbiological analysis of bioaerosols collected from Hospital Emergency Departments and ambulances

Bielawska-Drózd¹,

Cieślik²,

Bohacz³

et al. 2018

Ann Agric Environ Med.

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Introduction and objective. The goal of the study was a microbiological, qualitative and quantitative analysis of bioaerosol at the workplace of medical personnel (Health Emergency Departments (HEDs), ambulances), and comparative administration offices with an expected neutral occupational exposure to biological agents measured with individual Button Sampler. Materials and method. Personal sampling was performed with Button Sampler instrument loaded with gelatine filters in 10 HEDs, in 9 ambulances and in 9 offices to assess the occupational biological agents' exposure in air. Sampling was conducted from March until April 2016. Samples were quantitatively assessed for viable and total number of bacteria and fungi. Routine procedures for microbiological diagnostics were implemented. Data were analysed using Kruskal-Wallis and Mann-Whitney statistical tests with α=0.05. P value less than 0.05 were considered significant. Results. At the workplaces assessed, the concentrations of viable microorganisms in HEDs were 1.3 × 10 2 -4.2 × 10

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“…The proportion of particular groups of bacterial and fungal bioaerosols in relation to the total microbiota isolated from samples did not differ from common trends [5,6,8,16,18,19,20,21].…”

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Microbiological analysis of bioaerosols collected from Hospital Emergency Departments and ambulances

Bielawska-Drózd¹,

Cieślik²,

Bohacz³

et al. 2018

Ann Agric Environ Med.

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show abstract

“…a dedicated filter holder because this filter was reported to have high collection efficiency for microbial aerosols Sudharsanam et al, 2012 . The air suction rate of the suction pump connected to the filter holder for sampling of viable spores was 5 L/min for 4 min 20 L in total .…”

Section: Fig 1 Spore-dispersing Devicementioning

confidence: 99%

Development of a New Technique Using Glass Beads for Dry Dispersion of Airborne Fungal Spores

Shimasaki

Okaue²,

Kikuno³

et al. 2015

Biocontrol Sci.

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To evaluate the removal of airborne microbes by air cleaners, a technique for generating airborne fungal spores in the dry state in a test chamber dry dispersion become necessary. The Society of Indoor Environment Japan SIEJ published SIEJ Standard Method No. 20110001 SIEJ standard , in which an aerial ultrasonic oscillator was used as the device for dry dispersion. However, a more versatile apparatus is also necessary from a practical point of view. Therefore, we developed a new device using glass beads for the dispersion. Glass beads and a fungal sheet containing spores of Wallemia sebi were set in a midget impinger, which was connected to a compressor and a compact test chamber 1 m 3 . Air was blown into the impinger from the compressor. The spores on the fungal sheet were released by impingement of the glass beads when the beads were induced to float by the air blown into the impinger, and the spores were introduced to the chamber by the airflow. This newly developed technique can be used in a compact chamber system and could be applicable as an improved method for generating airborne fungal spores in the dry state in the SIEJ standard.

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“…In another study, 6 fungal genera Aspergillus, Rhizopus, Mucor, Penicillium, Verticillium and Candida were isolated from two hospitals (Bhatia and Vishwakarma, 2010). Aspergillus niger was isolated throughout the year by Sudharsanam et al (2012) from a hospital ward in a tropical setting.…”

Section: Fungal Allergensmentioning

confidence: 99%

Microbial Allergy with Special Focus on Saudi Arabia

Mahmoud¹,

Alghmadi²

2015

Microbiology J.

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Asthma is a clinical syndrome that typically consists of increased airway hyper-responsiveness and recurrent episodes of airway obstruction and inflammation. Allergy is a heightened sensitivity to a foreign substance. The early interventions with anti-inflammatory agents have indicated that the inhalation of corticosteroids may be effective in the treatment of recurrent wheezing. Currently, long-term asthma control medicines have been prescribed to be taken by mouth in order to open the airways and prevent airway inflammation. Examples included inhaled long-acting B2-agonists (used with low-dose inhaled corticosteroids), leukotriene modifiers, cromolyn and nedocromil and theophylline. In future, the bronchial thermoplasty may become the first non-pharmaceutical treatment for asthma. Furthermore, there is an urgent need for new anti-asthma drugs, where there are millions of people suffering of severe asthma. New treatments have been attempted especially those involving plant and herbal extracts. Asthma and allergy updated knowledge have been highlighted in this review.

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Characterization of indoor bioaerosols from a hospital ward in a tropical setting

Cited by 66 publications

References 10 publications

Microbiological analysis of bioaerosols collected from Hospital Emergency Departments and ambulances

Microbiological analysis of bioaerosols collected from Hospital Emergency Departments and ambulances

Development of a New Technique Using Glass Beads for Dry Dispersion of Airborne Fungal Spores

Microbial Allergy with Special Focus on Saudi Arabia

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