scholarly journals A Systematic Review on Coronavirus Disease 2019 (COVID-19)

2020 ◽  
Author(s):  
Hira Karim ◽  
Muhammad Shahzeb Khan
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Transmission Dynamics ◽  
World Health ◽  
Clinical Aspects ◽  
Viral Strain ◽  
Health Organization ◽  
Tract Infections

Emerging and reemerging pathogens is a global challenge for public health. Recently, a novel coronavirus disease emerged in Wuhan, Hubei province of China, in December 2019. It is named COVID-19 by World Health Organization (WHO). It is known to be caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) that affects the lower respiratory tract and manifests as pneumonia in humans. Coronaviruses (CoVs) are structurally more complicated as compared to other RNA viruses. This viral epidemic has led to the deaths of many, including the elderly or those with chronic disease or compromised immunity. Viruses cause infection and diseases in humans of varying degrees, upper respiratory tract infections (URTIs) cause common cold while lower respiratory tract infections induce pneumonia, bronchitis, and even severe acute respiratory syndrome (SARS). The costs of COVID-19 are not limited. It equally affects all the medical, sociological, psychological, and economic aspects globally. This is regarded as the third deadly outbreak in the last two decades after Severe Acute Respiratory Syndrome SARS (2002–2003) and Middle East Respiratory Syndrome MERS (2012). Based on the sequence homology of SARS-CoV-2, different animal sources including bats, snakes, and pangolins have been reported as potential carriers of this viral strain. Real-time RT-PCR represents the primary method for the diagnosis of new emerging viral strain SARS-CoV-2. The transmission dynamics suggest that SARS-CoV-2 is transmitted from person-to-person through direct contact or coughing, sneezing, and by respiratory droplets. Several anti-viral treatments including lopinavir/ritonavir, remdesivir, chloroquine phosphate, and abidor are also suggested with different recommendations and prescriptions. Protective and preventive strategies as suggested by various health organization i.e. WHO and US Center for Disease Control and Prevention (CDC) must be adopted by everyone. This review covers the important aspects of novel COVID-19 including characteristics, virology, symptoms, diagnostics, clinical aspects, transmission dynamics, and protective measures of COVID-19.

scholarly journals An Overview of Antivirals for Treating Lower Respiratory Tract Infections

2021 ◽  
Vol 66 (1) ◽  
Author(s):  
Alicia Elvira Cruz Jiménez ◽  
Liliana Quintanar Vera ◽  
J. Armando Lujan-Montelongo
Keyword(s):  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
World Health ◽  
High Morbidity ◽  
Lower Respiratory Tract Infections ◽  
Viral Pathogens ◽  
El Sistema ◽  
Health Organization ◽  
Tract Infections

Abstract. Covid-19 has resulted in a worldwide epidemic (pandemic) with high morbidity and mortality, which has generated efforts in various areas of research looking for safe and effective treatments to combat the virus that generates this disease: SARS-CoV-2. However, several viruses have been emerged/adapted in the last few decades, also affecting the respiratory system. According to the world health organization (WHO), lower respiratory tract infections (LRTIs) are one of the leading causes of death worldwide, and viruses are playing important roles as the cause of these infections. In contrast to the vast repertoire of antibiotics that exist to treat bacteria-caused LRTIs, there are a very few antivirals approved for the treatment of virus-caused LRTIs, whose approach consists mainly of drug reuse. This minireview deals on the main viral pathogens that cause LRTIs and some of the most relevant antivirals to counter them (available drugs and molecules in research/clinical trials), with concise comments of their mechanism of action.   Resumen. Covid-19 ha resultado en una epidemia mundial (pandemia) con alta morbilidad y mortalidad, lo que ha generado esfuerzos en diversas áreas de investigación en la búsqueda de tratamientos seguros y eficaces para combatir el virus que genera esta enfermedad: el SARS-CoV-2. Sin embargo, un número de virus han surgido o se han adaptado en las últimas décadas, que también afectan el sistema respiratorio. Según la Organización Mundial de la Salud (OMS), las infecciones en vías respiratorias inferiores (LRTIs, por sus siglas en inglés) son una de las principales causas de muerte a nivel mundial, siendo los virus de los principales patógenos causantes de estas infecciones. En contraste con el repertorio amplio de antibióticos que existen para tratar LRTIs causadas por bacterias, existen muy pocos antivirales aprobados para su tratamiento, cuyo enfoque consiste principalmente en la reutilización de fármacos. Este ensayo consiste en una breve revisión de los principales agentes virales que causan LRTIs y de los antivirales más relevantes para combatir los virus que las causan (tanto fármacos disponibles como moléculas en fases de investigación o clínicas), con comentarios concisos sobre su mecanismo de acción.

Lower Respiratory Tract Infections in Children in a Well-vaccinated South African Birth Cohort: Spectrum of Disease and Risk Factors

2019 ◽  
Vol 69 (9) ◽  
pp. 1588-1596 ◽  
Author(s):  
David M le Roux ◽  
Mark P Nicol ◽  
Landon Myer ◽  
Aneesa Vanker ◽  
Jacob A M Stadler ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Tract ◽  
Birth Cohort ◽  
Maternal Smoking ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
World Health ◽  
Lower Respiratory Tract Infections ◽  
Tract Infections ◽  
Substantial Morbidity

Abstract Background Childhood lower respiratory tract infections (LRTIs) cause substantial morbidity and under-5 child mortality. The epidemiology of LRTI is changing in low- and middle-income countries with expanding access to conjugate vaccines, yet there are few data on the incidence and risk factors for LRTI in these settings. Methods A prospective birth cohort enrolled mother–infant pairs in 2 communities near Cape Town, South Africa. Active surveillance for LRTI was performed for the first 2 years of life over 4 respiratory seasons. Comprehensive data collection of risk factors was done through 2 years of life. World Health Organization definitions were used to classify clinical LRTI and chest radiographs. Results From March 2012 to February 2017, 1143 children were enrolled and followed until 2 years of age. Thirty-two percent of children were exposed to antenatal maternal smoking; 15% were born at low birth weights. Seven hundred ninety-five LRTI events occurred in 429 children by February 2017; incidence of LRTI was 0.51 and 0.25 episodes per child-year in the first and second years of life, respectively. Human immunodeficiency virus (HIV)–exposed, uninfected infants (vs HIV-unexposed infants) were at increased risk of hospitalized LRTI in the first 6 months of life. In regression models, male sex, low birth weight, and maternal smoking were independent risk factors for both ambulatory and hospitalized LRTI; delayed or incomplete vaccination was associated with hospitalized LRTI. Conclusions LRTI incidence was high in the first year of life, with substantial morbidity. Strategies to ameliorate harmful exposures are needed to reduce LRTI burden in vulnerable populations.

scholarly journals Do pollution and climate influence respiratory tract infections in children?

2014 ◽  
Vol 60 (3) ◽  
pp. 276-282 ◽  
Author(s):  
Saulo Duarte Passos ◽  
Rosa Estela Gazeta ◽  
Ana Paula Felgueiras ◽  
Patrícia Costa Beneli ◽  
Micheline de S. Z. S. Coelho
Keyword(s):  
Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Pediatric Population ◽  
Clinical Importance ◽  
Respiratory Viruses ◽  
World Health ◽  
Human Bocavirus ◽  
Syncytial Virus ◽  
Health Organization ◽  
Tract Infections

To review if pollution and climate changes can influence respiratory tract infections in children. Data source: articles published on the subject in PubMed, SciELO, Bireme, EBSCO and UpTodate were reviewed. The following inclusion criteria were considered: scientific papers between 2002 and 2012, study design, the pediatric population, reference documents such as the CETESB and World Health Organization Summary of the data: We analyzed research that correlated respiratory viruses and climate and/or pollution changes. Respiratory syncytial virus has been the virus related most to changes in climate and humidity. Other "old and new" respiratory viruses such as Human Bocavirus, Metapneumovirus, Parechovirus and Parainfuenza would need to be investigated owing to their clinical importance. Although much has been studied with regard to the relationship between climate change and public health, specific studies about its influence on children's health remain scarce.

scholarly journals FOOD SAFETY MANAGEMENT IN LIGHT OF PANDEMIC COVID-19FOR MEDIUM CARE POSITIVE CASES UNIT(MCU)AT 57357CCHE

2021 ◽  
Vol 9 (02) ◽  
pp. 953-960
Author(s):  
Afaf A. Amin ◽  
◽  
Gulsen A. Saleh ◽  
Ahmed S. Khedr ◽  
◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Safety Management ◽  
The Other ◽  
World Health ◽  
The World ◽  
Novel Coronavirus ◽  
Health Organization ◽  
Tract Infections ◽  
The City

COVID-19 is a new strain of coronavirus to which humans have not got immunity. It originated in China and has quickly spread around the world.It is a disease caused by an infection by SARS-CoV-2 virus, first identified in the city of Wuhan, in Chinas Hubei province in December 2019. COVID-19 was previously known as 2019 Novel Coronavirus (2019-nCoV) respiratory disease before the World Health Organization (WHO) declared the official name as COVID-19 in February 2020. Like the other coronaviruses, the SARS-CoV-2 virus primarily causes respiratory tract infections, and the severity of the COVID-19 disease can range from mild to fatal.

scholarly journals Prevalence of Bacterial Lower Respiratory Tract Infections at a Tertiary Hospital in Jordan

10.3823/837 ◽  
2019 ◽  
Vol 9 (3) ◽  
Author(s):  
Nathir Obeidat ◽  
Isam Bsisu ◽  
Faruque Parvez ◽  
Zafrin Islam ◽  
Zaina Obeidat ◽  
...  
Keyword(s):  
Chronic Disease ◽  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Bacterial Infections ◽  
Respiratory Tract Infections ◽  
Morbidity And Mortality ◽  
University Hospital ◽  
World Health ◽  
Lower Respiratory Tract Infections ◽  
Tract Infections

Background: Lower respiratory tract infections (LRTI) are a major cause of morbidity and mortality globally. The World Health Organization (WHO) estimates that LRTI are the most common global cause of death from infectious diseases.  However, the specific etiologic agent associated with LRTI is often unknown. Aims: We determined the bacterial infections and seasonal patterns associated with LRTI among hospitalized cases at Jordan University Hospital (JUH) for a period of five years. Methods: We conducted a multi-year study among hospitalized patients in Jordan on LRTI-associated bacterial etiology. Results: We found bacterial infections among 105 (21.1%) out of 495 LRTI patients. The most frequently identified bacteria in the LRTI patients were Staphylococcus aureus (7.7%) followed by Pseudomonas aeruginosa (5.1%). Most of the LRTI patients (95.2%) had at least one chronic disease and many were admitted to the Intensive Care Unit (16.8%). Of the 18 (3.64%) patients with LRTI who died at the hospital, 2 had a bacterial infection. We noticed a seasonal pattern of bacterial infections, with the highest prevalence during the winter months. Conclusions: Our findings suggest that early identification of bacterial agents and control of chronic disease may improve clinical management and reduce morbidity and mortality from LRTI.

Use of Chest Radiography Examination as a Probe for Pneumococcal Conjugate Vaccine Impact on Lower Respiratory Tract Infections in Young Children

2019 ◽  
Vol 71 (1) ◽  
pp. 177-187 ◽  
Author(s):  
Shalom Ben-Shimol ◽  
Ron Dagan ◽  
Noga Givon-Lavi ◽  
Dekel Avital ◽  
Jacob Bar-Ziv ◽  
...  
Keyword(s):  
Young Children ◽  
Respiratory Tract ◽  
Conjugate Vaccine ◽  
Chest Radiography ◽  
Pneumococcal Conjugate Vaccine ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
World Health ◽  
Lower Respiratory Tract Infections ◽  
Tract Infections

Abstract Background Community-acquired alveolar pneumonia (CAAP) is considered a bacterial disease, mainly pneumococcal. CAAP rates markedly declined following 7- and 13-valent pneumococcal conjugate vaccine (PCV) introductions worldwide. In contrast, non-CAAP lower respiratory tract infections (NA-LRIs) are generally not considered pneumococcal diseases. We assessed CAAP, NA-LRIs, and overall visits with chest radiograph (CXR) examination rates in the pediatric emergency room in southern Israel before and after PCV implementation. Methods This was an ongoing, prospective observational study. Our hospital serves a captive population of approximately 75 000 children aged <5 years, enabling incidence calculation. PCV7 and PCV13 were implemented in Israel in July 2009 and November 2010, respectively. All CXRs were analyzed according to the World Health Organization Standardization of Interpretation. We calculated CAAP, NA-LRI, and CXR examinations annual incidences from 2004 to 2017 and incidence rate ratios comparing the PCV13 (2014–2017) with the pre-PCV (2004–2008) periods. Results Overall, 72 746 CXR examinations were recorded: 14% CAAP and 86% NA-LRI. CAAP, NA-LRI, and CXR examination visit rates declined by 49%, 34%, and 37%, respectively. This pattern was seen in Jewish and Bedouin children (the 2 ethnically distinct populations), with steeper declines observed among Jewish children and children aged >12 months. Conclusions PCV7/PCV13 implementation resulted in a marked decline in CAAP and overall visits with CXR examination rates in young children. Overall, approximately 14 750 hospital visits with CXR were prevented annually per 100 000 population aged <5 years. These findings suggest that although NA-LRIs are usually not considered pneumococcal, many can be prevented by PCVs. Pneumococcal conjugate vaccine (PCV7/PCV13) implementation resulted in significant declines in community-acquired alveolar pneumonia (CAAP) and overall chest radiography examination rates in young children. Although non-CAAP lower respiratory tract infections are usually not considered pneumococcal, many can be prevented by PCVs.

scholarly journals Drugs used for the treatment of COVID-19: A Review

2021 ◽  
Vol 16 (1) ◽  
pp. 45-51
Author(s):  
MM Bodiuzzaman
Keyword(s):  
Acute Respiratory Distress Syndrome ◽  
Respiratory Tract ◽  
Respiratory Distress Syndrome ◽  
Respiratory Tract Infections ◽  
Distress Syndrome ◽  
Empirical Therapy ◽  
World Health ◽  
Health Organization ◽  
Tract Infections ◽  
The City

COVID-19 is primarily a respiratory disease caused by a newly discovered SARS-CoV-2 virus and identified in the city of Wuhan, China in December 2019. World Health Organization (WHO) has declared this disease as a pandemic, and warned other countries. Presently this has affected 221 countries, areas or territories worldwide, Spreading of this disease is very fast in USA, India, Brazil, and Russia than in the country of its origin China. Like other coronaviruses, this may develop respiratory tract infections in the patients range from mild to fatal illness like pneumonia and acute respiratory distress syndrome (ARDS). Bangladesh, a country of 170 million people, is not an exception regarding COVID-19; it has been reported 5,70,800 confirmed cases with 8690 documented deaths. Still now no effective drug, vaccine, or any procedure is available and experiments are underway. However, empirical therapy is being followed to manage and save the lives of the patients. There is a need for pharmacological alternatives to combat this deadly virus and its complications. Based on the previous experiences with similar coronavirus management and present preliminary data from uncontrolled studies, drugs like Chloroquine, Hydroxychloroquine, Remdesivir, Lopinavir/Ritonavir, and Favipiravir have been recommended by the researchers to manage COVID-19. This review had assessed the potential mechanisms, safety profile, availability and cost of these drugs. This review concludes that the drugs mentioned above are having different properties and act differently in combating the COVID-19 viruses. Faridpur Med. Coll. J. 2021;16(1):45-51

scholarly journals Risk Factors for Respiratory Syncytial Virus Lower Respiratory Tract Infections: Evidence from an Indonesian Cohort

Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 331
Author(s):  
Rowena Crow ◽  
Kuswandewi Mutyara ◽  
Dwi Agustian ◽  
Cissy B. Kartasasmita ◽  
Eric A. F. Simões
Keyword(s):  
Risk Factors ◽  
Respiratory Syncytial Virus ◽  
Respiratory Tract ◽  
Lower Respiratory Tract ◽  
Respiratory Tract Infections ◽  
World Health ◽  
Lower Respiratory Tract Infections ◽  
Cross Sectional ◽  
Syncytial Virus ◽  
Tract Infections

Although risk factors for hospitalization from a respiratory syncytial virus (RSV) are well known, RSV lower respiratory tract infections (LRIs) in the community are much less studied or understood, especially in developing countries. In a prospective, cohort study we studied factors predisposing Indonesian infants and children under 5 years of age to developing RSV LRIs. Subjects were enrolled in two cohorts: a birth cohort and a cross-sectional cohort of children <48 months of age. Subjects were visited weekly at home to identify any LRI, using the World Health Organization’s criteria. RSV etiology was determined through analysis of nasal washings by enzyme immunoassay and polymerase chain reaction. Risk factors for the development of the first documented RSV LRI were identified by multivariate analysis using logistic regression and Cox proportional hazard modeling. Of the 2014 children studied, 999 were enrolled within 30 days of birth. There were 149 first episodes of an RSV. Risk factors for an RSV LRI were poverty (p < 0.01), use of kerosene as a cooking fuel (p < 0.05), and household ownership of rabbits and chickens (p < 0.01). Our findings suggested that in a middle-income country such as Indonesia, with a substantial burden of RSV morbidity and mortality, lower socioeconomic status, environmental air quality, and animal exposure are predisposing factors for developing an RSV LRI.

Sign in / Sign up

Export Citation Format

Share Document