Metapneumovirus humano: epidemiología y posibles tratamientos profilácticos

2020 ◽  
Vol 63 (3) ◽  
pp. 7-18
Author(s):  
Marcela Solís-Rodríguez ◽  
Ángel G. Alpuche-Solís ◽  
Rocío G. Tirado-Mendoza

In 2001 in the Netherlands, Human metapneumovirus (hMPV) was identified as a “new” etiologic agent causing acute respiratory infections in children younger than 5 years old; however, it has also been isolated in the elderly and immunocompromised people. This virus is considered the second etiological agent in acute diseases of the respiratory tract. Currently, the estimated cost of IRAs in our country is of 9,000USD per inpatient. hMPV is a member of the genus Metapneumovirus, family Pneumoviridae, and it belongs to the order Mononegavirales that is part of the negative single-stranded ribonucleic acid (RNA) virus, consisting of eight genes ordered: 3’-N-P-M-FM2-SH-G-L-5 ‘, and which encodes for 9 proteins. Of these proteins, the F fusion glycoprotein is highly conserved in the genus Metapneumovirus, and is the major antigenic determinant, and because an approved vaccine doesn’t exist, it has been used as a candidate epitope for the design of a vaccine that confers host immunity or as a therapeutic target in the creation of antiviral peptides that inhibit the fusion of the virus to its target cell and to avoid infection in subjects at high risk of contagion since there is currently none accepted by COFEPRIS as a prophylactic treatment against hMPV. Key words: hMPV; respiratory infections; epitopes; protein F;vaccines.

1998 ◽  
Vol 9 (2) ◽  
pp. 93-107 ◽  
Author(s):  
Shiro Shigeta

The causative agents of acute respiratory infections (ARI) in infants and children are mostly thought to be viruses. Some ARI in adult patients may be caused by bacteria but most often the causes are virus infections. When ARI affect immunocompromised patients or the elderly the mortality rates are significantly higher than in immunocompetent individuals. Many types of viruses cause ARI. Among them, influenza viruses A and B and respiratory syncytial virus (RSV) are thought to be the most important because of the severity of illness after infection and their high communicability in the human population. Recently, several novel antiviral drugs against ARI have been developed and some are proceeding in clinical trials. This review covers current investigations into antiviral compounds targeted at several points in the virus life-cycle. This includes PM-523, which broadly inhibits ortho- and paramyxoviruses, two neuraminidase inhibitors for influenza virus, neutralizing antibody to RSV and chimeric soluble ICAM-1–IgA molecules targeted against rhinoviruses.


2004 ◽  
Vol 51 (1) ◽  
pp. 53-57 ◽  
Author(s):  
EIICHIRO SUGIHARA ◽  
YASUKO KIDO ◽  
MASAKI OKAMOTO ◽  
TAKESHI KOYANAGI ◽  
TAKASHI NIIZEKI ◽  
...  

2018 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Jairo Mendoza ◽  
Jhonny Valverde Flores

Air pollution is an increasingly common environmental problem, affecting the health of people in the world's major cities, with the most vulnerable being pregnant women, the elderly and children in economically deprived and excluded sectors. The city of Lima, Peru shows an accelerated increase of industrialization, commercialization, a great flow and vehicular congestion, generating high levels of nitrogen dioxide concentration. In order to obtain the concentrations, the passive method was used during a weekly exposure time. The registered cases of acute respiratory infections were obtained from the Centro Materno Infantil "Los Sureños". Of the results obtained normal, for nitrogen dioxide gave a value of 0.293 and a value of 0.514 for acute respiratory infections. The Pearson correlation value is 0.862 for the concentration of nitrogen dioxide and cases of acute respiratory infections in children under 5 years of age. In conclusion, it was possible to determine whether there is a strong correlation between nitrogen dioxide concentration and acute respiratory infections.


2018 ◽  
pp. 34-42
Author(s):  
M. V. Leleka

The economic burden of the incidence of influenza and ARI requires careful study, since annually about 15% of the world's population suffers from these diseases. In addition, the flu can cause complications that are dangerous to human life and health, especially those at risk. The elderly population belongs precisely to this group, therefore we have chosen to analyze the economic burden of this category of population. According to the international classification, this group of diseases is divided into the following types: Influenza-like illness (ILI); – Acute respiratory infection (ARI); – Severe acute respiratory infections (SARI); – Severe Acute Respiratory Syndrome (SARS). The aim of the work was to develop a model for systematization flows of patients and treatment costs in assessing the economic burden of influenza and ARI morbidity in the elderly peoples in Central and Eastern Europe. The model was developed in cooperation with the Syreon Institute, Hungary. The study involved Hungary, Poland, the Czech Republic, Romania, Ukraine and Kazakhstan. The structure of the model is based on the assumption of a flow of patients. The principle of the model was as follows: in order to assess the economic burden of the disease in a certain period of time, it is necessary to quantify (1) the number of patients, and (2) the costs of health care and treatment. The cost of treatment is different in each case, patients should be divided into relatively homogeneous groups. Since the quantity and quality of the epidemiological data on influenza and related diseases is rather heterogeneous in different countries, WHO offers certain objects of influenza research, taken as a basis for constructing such a model. According to this classification of influenza and WHO definition, the central structure of our model was formed by acute respiratory infections (ARI), representing outpatient cases and severe acute respiratory infections (SARI), representing inpatient cases. The next stage of the research was the study of the cost structure and the principles of collecting expenditure data. The economic burden of influenza in the elderly populations has been analyzed based on the type of health system. In older people, it is difficult to establish a link between influenza and complications of chronic diseases and other acute medical conditions (eg, acute coronary syndrome). This analysis does not include estimates of the economic impact of influenza on other co-morbidities and long-term chronic effects associated with complications of influenza. Since the population of 60+ or 65+ is a risk group and is a numerical group, the cost of treatment in the event of complications and hospitalization will increase cost for the patient and for the medical institution. However, in this case indirect costs is missing, such as paying a sick list. Direct medical cost were subject to analysis. The proposed methodology allows you to objectively assess the costs of treatment and calculate the economic burden, taking into account the type and health system.


2019 ◽  
Vol 11 (2) ◽  
pp. 79-86
Author(s):  
Cindy Ayustin Noya ◽  
Angkit Kinasih ◽  
Venti Agustina ◽  
R.Rr Maria Dyah Kurniasari

Infeksi saluran pernafasan akut atau yang sering disebut ISPA merupakan infeksi pada saluran pernafasan baik saluran pernafasan atas atau bawah.ISPA juga kebanyakan terjadi pada anak balita karena daya tahan tubuh mereka tidak kuat dalam menghadapi penyakit ISPA. ISPA mengakibatkan kematiansekitar15%-20% per tahun pada usia balita di Negara berkembang. Tujuan penelitian ini adalah untuk mengetahui dan menganalisa peran ibu dalam meningkatkan sistem imun anak dengan ISPA.Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif deskriptif dengan sampel purposive sampling.Populasi dan sampel penelitian ini adalah ibu yang mempunyai anak dengan riwayat dan saat ini menderita penyakit ISPA di Batu Gajah Kota Ambon.Partisipan dalam penelitian ini berjumlah 5 orang. Hasil dari penelitian mendapati 4 kategori yaitu pemberian nutrisi pada anak untuk memenuhi kebutuhan agar sistem imunnya terjaga, kebersihan lingkungan, peran ibu dalam melakukan pencegahan pada anaknya yang mengalami ISPA, dan  peran ibu dalam menjaga dan mempertahankan kesehatan anaknya.   Kata kunci: peran ibu, sistem imun, ispa THE ROLE OF MOTHERS IN INCREASING IMMUNE SYSTEM OF CHILDREN WITH ACUTE RESPIRATORY INFECTION    ABSTRACT Acute respiratory infections or often called ARI is an infection of the upper or lower respiratory tract. ARI occurs mostly in children under the age of five because their endurance is not strong in dealing with ARI. ARI results in deaths of around 15%-20% per year at the age of under-five in developing countries. The purpose of this study was to determine and analyze the role of mothers in improving the immune system of children against ARI. The research method used in this study was qualitative descriptive with a purposive sampling sample. Respondents and samples of this study were five mothers who had children with a history of ARI and currently suffering from the disease in Batu Gajah, Ambon City. The results of the study found 4 categories, namely providing nutrition to children to meet their needs so that their immune systems are maintained, clean environment, mother's role in preventing children with ARI, and mother's role to preserve and maintain the health of their children. The findings indicated that in terms of coping or improving the immune system of a child to avoid ARI, it is necessary to have role the of mothers in providing nutrition so that the immune system is boosted, besides that the mother can prevent and protect her child from various diseases, especially ARI. Keywords: role of mothers, immune system, acute respiratory infections


2016 ◽  
Vol 77 (5) ◽  
pp. 34-39
Author(s):  
G.V. Beketova ◽  
◽  
O.V. Soldatova ◽  
R.Z. Gan ◽  
◽  
...  

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