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  1. Article: Progression of COVID-19 under the highly restrictive measures imposed in Argentina.

    Sagripanti, Jose-Luis / Aquilano, Daniel R

    Journal of public health research

    2021  Volume 11, Issue 1

    Abstract: The variety and extent of non-pharmaceutical measures implemented by the government to control COVID-19 in Argentina were exceptional, making this country the best example to analyze the evolution of COVID-19 under the most stringent and longer-lasting ... ...

    Abstract The variety and extent of non-pharmaceutical measures implemented by the government to control COVID-19 in Argentina were exceptional, making this country the best example to analyze the evolution of COVID-19 under the most stringent and longer-lasting restrictive policies- which included 119 days of strict nation-wide lock-down, 304 days of less restrictive lock-downs, and 35 days of curfews. Two of the three peaks of infection correlated with the germicidal solar flux received in Argentina, suggesting a seasonal component and a role for the virus persisting in the environment. A massive public gathering crowding the presidential square in Buenos Aires, during which nearly half of those present were without face masks, did not alter the infection curve in that city. Comparative epidemiological data (standardized per million inhabitants) shows that COVID-19 in Uruguay, a neighboring country whose capital is at a similar latitude than Buenos Aires and who did not mandate lock-downs or curfews, progressed much slower (until vaccination started) than in Argentina. The number of yearly deaths caused by respiratory diseases and influenza in Argentina before the pandemic was similar to the total number of deaths attributed to COVID-19 cumulated on April 25, 2021, more than a year after the pandemic started. The failure to detect any benefit on ameliorating COVID-19 by the long and strict nation-wide lock-downs in Argentina should raise world-wide concerns about mandating costly and ineffective restrictive measures during ongoing or future pandemics.
    Language English
    Publishing date 2021-11-19
    Publishing country Italy
    Document type Journal Article
    ISSN 2279-9028
    ISSN 2279-9028
    DOI 10.4081/jphr.2021.2490
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Estimated Inactivation of Coronaviruses by Solar Radiation With Special Reference to COVID-19.

    Sagripanti, Jose-Luis / Lytle, C David

    Photochemistry and photobiology

    2020  Volume 96, Issue 4, Page(s) 731–737

    Abstract: Using a model developed for estimating solar inactivation of viruses of biodefense concerns, we calculated the expected inactivation of SARS-CoV-2 virus, cause of COVID-19 pandemic, by artificial UVC and by solar ultraviolet radiation in several cities ... ...

    Abstract Using a model developed for estimating solar inactivation of viruses of biodefense concerns, we calculated the expected inactivation of SARS-CoV-2 virus, cause of COVID-19 pandemic, by artificial UVC and by solar ultraviolet radiation in several cities of the world during different times of the year. The UV sensitivity estimated here for SARS-CoV-2 is compared with those reported for other ssRNA viruses, including influenza A virus. The results indicate that SARS-CoV-2 aerosolized from infected patients and deposited on surfaces could remain infectious outdoors for considerable time during the winter in many temperate-zone cities, with continued risk for re-aerosolization and human infection. Conversely, the presented data indicate that SARS-CoV-2 should be inactivated relatively fast (faster than influenza A) during summer in many populous cities of the world, indicating that sunlight should have a role in the occurrence, spread rate and duration of coronavirus pandemics.
    MeSH term(s) Aerosols/radiation effects ; Air Microbiology ; Betacoronavirus/radiation effects ; COVID-19 ; Coronavirus Infections/prevention & control ; Coronavirus Infections/transmission ; Coronavirus Infections/virology ; Environmental Microbiology ; Humans ; Models, Biological ; Pandemics/prevention & control ; Pneumonia, Viral/prevention & control ; Pneumonia, Viral/transmission ; Pneumonia, Viral/virology ; Radiation Tolerance ; SARS-CoV-2 ; Seasons ; Solar Energy ; Sunlight ; Ultraviolet Rays ; Virus Inactivation/radiation effects ; Weather
    Chemical Substances Aerosols
    Keywords covid19
    Language English
    Publishing date 2020-07-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123540-0
    ISSN 1751-1097 ; 0031-8655
    ISSN (online) 1751-1097
    ISSN 0031-8655
    DOI 10.1111/php.13293
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Seasonality and Progression of COVID-19 among Countries With or Without Lock-downs.

    Sagripanti, Dr. Jose-Luis

    medRxiv

    Abstract: Early predictions by computer simulation of 7 billion infections and 40 million deaths by COVID-19 during 2020 alone if lock-downs and other confining measures were not enforced may have justified restrictive policies mandated by governments of 165 ... ...

    Abstract Early predictions by computer simulation of 7 billion infections and 40 million deaths by COVID-19 during 2020 alone if lock-downs and other confining measures were not enforced may have justified restrictive policies mandated by governments of 165 countries. The aim of the present study was to determine differences between the infection and death rate in countries that established early, nation-wide lock-downs versus countries that did not mandated any lock-downs to deal with the COVID-19 crisis. The analyzed epidemiological data indicates that lock-downs, and other confining measures had no effect on the chances of healthy individuals becoming infected with SARS-CoV-2 or dying. The highest incidence of COVID-19 infection progressed from countries in northern latitudes, where it was winter at the beginning of the pandemic, to countries in the southern hemisphere in July 21, 2020 were winter was starting. A considerable (4-fold) increase in COVID-19 infection rate is observed between fall and beginning of winter in countries in the southern hemisphere. This seasonal progression correlates with the variation in the germicidal solar flux received by these countries, suggesting that infectious virus in the environment plays a role in the evolution of COVID-19. In addition, hypotheses are presented that could explain the recurrent new spikes of COVID-19 as well as the mortality of SARS-Co V-2 observed in some developed countries higher than the mortality rate reported in several developing countries.
    Keywords covid19
    Language English
    Publishing date 2020-12-07
    Publisher Cold Spring Harbor Laboratory Press
    Document type Article ; Online
    DOI 10.1101/2020.12.06.20244780
    Database COVID19

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  4. Article ; Online: Progression of COVID-19 under the highly restrictive measures imposed in Argentina

    Jose-Luis Sagripanti / Daniel R. Aquilano

    Journal of Public Health Research (2021)

    2021  

    Abstract: The variety and extent of non-pharmaceutical measures implemented by the government to control COVID-19 in Argentina were exceptional, making this country the best example to analyze the evolution of COVID-19 under the most stringent and longer-lasting ... ...

    Abstract The variety and extent of non-pharmaceutical measures implemented by the government to control COVID-19 in Argentina were exceptional, making this country the best example to analyze the evolution of COVID-19 under the most stringent and longer-lasting restrictive policies- which included 119 days of strict nation-wide lock-down, 304 days of less restrictive lock-downs, and 35 days of curfews. Two of the three peaks of infection correlated with the germicidal solar flux received in Argentina, suggesting a seasonal component and a role for the virus persisting in the environment. A massive public gathering crowding the presidential square in Buenos Aires, during which nearly half of those present were without face masks, did not alter the infection curve in that city. Comparative epidemiological data (standardized per million inhabitants) shows that COVID-19 in Uruguay, a neighboring country whose capital is at a similar latitude than Buenos Aires and who did not mandate lock-downs or curfews, progressed much slower (until vaccination started) than in Argentina. The number of yearly deaths caused by respiratory diseases and influenza in Argentina before the pandemic was similar to the total number of deaths attributed to COVID-19 cumulated on April 25, 2021, more than a year after the pandemic started. The failure to detect any benefit on ameliorating COVID-19 by the long and strict nation-wide lock-downs in Argentina should raise world-wide concerns about mandating costly and ineffective restrictive measures during ongoing or future pandemics.
    Keywords COVID-19 ; SARS-Co V-2 ; pandemic ; lockdown ; curfew ; vaccination ; Public aspects of medicine ; RA1-1270
    Subject code 900
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher PAGEPress Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Estimated Inactivation of Coronaviruses by Solar Radiation With Special Reference to COVID‐19

    Sagripanti, Jose‐Luis / Lytle, C. David

    Photochemistry and Photobiology

    2020  Volume 96, Issue 4, Page(s) 731–737

    Keywords Physical and Theoretical Chemistry ; Biochemistry ; General Medicine ; covid19
    Language English
    Publisher Wiley
    Publishing country us
    Document type Article ; Online
    ZDB-ID 123540-0
    ISSN 1751-1097 ; 0031-8655
    ISSN (online) 1751-1097
    ISSN 0031-8655
    DOI 10.1111/php.13293
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    In stock of ZB MED Cologne/Königswinter

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  6. Article: Estimated Inactivation of Coronaviruses by Solar Radiation With Special Reference to COVID-19

    Sagripanti, Jose-Luis / Lytle, C David

    Photochem Photobiol

    Abstract: Using a model developed for estimating solar inactivation of viruses of biodefense concerns, we calculated the expected inactivation of SARS-CoV-2 virus, cause of COVID-19 pandemic, by artificial UVC and by solar ultraviolet radiation in several cities ... ...

    Abstract Using a model developed for estimating solar inactivation of viruses of biodefense concerns, we calculated the expected inactivation of SARS-CoV-2 virus, cause of COVID-19 pandemic, by artificial UVC and by solar ultraviolet radiation in several cities of the world during different times of the year. The UV sensitivity estimated here for SARS-CoV-2 is compared with those reported for other ssRNA viruses, including influenza A virus. The results indicate that SARS-CoV-2 aerosolized from infected patients and deposited on surfaces could remain infectious outdoors for considerable time during the winter in many temperate-zone cities, with continued risk for re-aerosolization and human infection. Conversely, the presented data indicate that SARS-CoV-2 should be inactivated relatively fast (faster than influenza A) during summer in many populous cities of the world, indicating that sunlight should have a role in the occurrence, spread rate and duration of coronavirus pandemics.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #545848
    Database COVID19

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  7. Article ; Online: Evaluation criteria for bioaerosol samplers.

    Kesavan, Jana / Sagripanti, Jose-Luis

    Environmental science. Processes & impacts

    2015  Volume 17, Issue 3, Page(s) 638–645

    Abstract: Humans contract a variety of serious diseases through inhalation of infectious aerosols. Thus, the importance of monitoring air for microbial, toxic, or allergic content is recognized in clinical, occupational, and biodefense arenas. However, accurate ... ...

    Abstract Humans contract a variety of serious diseases through inhalation of infectious aerosols. Thus, the importance of monitoring air for microbial, toxic, or allergic content is recognized in clinical, occupational, and biodefense arenas. However, accurate monitoring of potentially contaminated environments can be hampered by selection of aerosol samplers with inadequate performance for the intended task. In this study, 29 aerosol samplers were evaluated based on their respective air flow, size, weight, power consumption, and efficiency in sampling particles in the respirable range. The resulting data demonstrates that sampling air flow and efficiency vary widely, and cannot be predicted from the physical characteristics of air samplers, and hence, that proper selection of air samplers should be more involved than shopping for a device based on the limited characteristics that are published by the manufacturers. The findings are summarized in an approach to rationally select bioaerosol samplers for use in infection control and environmental biomonitoring. The presented data demonstrates that inadequate selection of air samplers could result in a failure to collect particles of interest and thus, underestimate the risk and provide a false sense of security in contaminated health care settings and environments contaminated with infectious or toxic aerosols.
    MeSH term(s) Aerosols/analysis ; Air Pollutants, Occupational/analysis ; Environmental Monitoring/instrumentation ; Equipment Design ; Filtration ; Humans ; Inhalation Exposure/analysis ; Occupational Exposure/analysis ; Particle Size
    Chemical Substances Aerosols ; Air Pollutants, Occupational
    Language English
    Publishing date 2015-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/c4em00510d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Evaluation criteria for bioaerosol samplers

    Kesavan, Jana / Sagripanti, Jose-Luis

    Environmental science

    2015  Volume 17, Issue 3, Page(s) 638

    Language English
    Document type Article
    ZDB-ID 2703814-2
    ISSN 2050-7887
    Database Current Contents Nutrition, Environment, Agriculture

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  9. Article: Evaluation criteria for bioaerosol samplers

    Kesavan, Jana / Sagripanti, Jose-Luis

    Environmental science. 2015 Mar. 11, v. 17, no. 3

    2015  

    Abstract: Humans contract a variety of serious diseases through inhalation of infectious aerosols. Thus, the importance of monitoring air for microbial, toxic, or allergic content is recognized in clinical, occupational, and biodefense arenas. However, accurate ... ...

    Abstract Humans contract a variety of serious diseases through inhalation of infectious aerosols. Thus, the importance of monitoring air for microbial, toxic, or allergic content is recognized in clinical, occupational, and biodefense arenas. However, accurate monitoring of potentially contaminated environments can be hampered by selection of aerosol samplers with inadequate performance for the intended task. In this study, 29 aerosol samplers were evaluated based on their respective air flow, size, weight, power consumption, and efficiency in sampling particles in the respirable range. The resulting data demonstrates that sampling air flow and efficiency vary widely, and cannot be predicted from the physical characteristics of air samplers, and hence, that proper selection of air samplers should be more involved than shopping for a device based on the limited characteristics that are published by the manufacturers. The findings are summarized in an approach to rationally select bioaerosol samplers for use in infection control and environmental biomonitoring. The presented data demonstrates that inadequate selection of air samplers could result in a failure to collect particles of interest and thus, underestimate the risk and provide a false sense of security in contaminated health care settings and environments contaminated with infectious or toxic aerosols.
    Keywords air ; air flow ; bioaerosols ; breathing ; disease control ; energy use and consumption ; environmental monitoring ; health services ; humans ; risk ; samplers ; toxicity
    Language English
    Dates of publication 2015-0311
    Size p. 638-645.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/c4em00510d
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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  10. Article ; Online: Sensitivity to ultraviolet radiation of Lassa, vaccinia, and Ebola viruses dried on surfaces.

    Sagripanti, Jose-Luis / Lytle, C David

    Archives of virology

    2011  Volume 156, Issue 3, Page(s) 489–494

    Abstract: Germicidal UV (also known as UVC) provides a means to decontaminate infected environments as well as a measure of viral sensitivity to sunlight. The present study determined UVC inactivation slopes (and derived D(37) values) of viruses dried onto ... ...

    Abstract Germicidal UV (also known as UVC) provides a means to decontaminate infected environments as well as a measure of viral sensitivity to sunlight. The present study determined UVC inactivation slopes (and derived D(37) values) of viruses dried onto nonporous (glass) surfaces. The data obtained indicate that the UV resistance of Lassa virus is higher than that of Ebola virus. The UV sensitivity of vaccinia virus (a surrogate for variola virus) appeared intermediate between that of the two virulent viruses studied. In addition, the three viruses dried on surfaces showed a relatively small but significant population of virions (from 3 to 10 % of virus in the inoculum) that appeared substantially more protected by their environment from the effect of UV than the majority of virions tested. The findings reported in this study should assist in estimating the threat posed by the persistence of virus in environments contaminated during epidemics or after an accidental or intentional release.
    MeSH term(s) Desiccation ; Ebolavirus/radiation effects ; Environmental Microbiology ; Glass ; Humans ; Lassa virus/radiation effects ; Ultraviolet Rays ; Vaccinia virus/radiation effects
    Language English
    Publishing date 2011-03
    Publishing country Austria
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 7491-3
    ISSN 1432-8798 ; 0304-8608
    ISSN (online) 1432-8798
    ISSN 0304-8608
    DOI 10.1007/s00705-010-0847-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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