Survival of human parainfluenza viruses in the South Polar environment.
نویسندگان
چکیده
The survival of human parainfluenza virus types 1, 2, and 3 was measured in both indoor and outdoor environments at South Pole Station, Antarctica, in an effort to determine the long-term survival of these viruses in this environment and to identify the possible source of respiratory tract illnesses which occurred in this isolated population in 1978 after 10 and 27 weeks of total social isolation. Viruses were applied to plastic petri plate surfaces which were then stored in indoor (21.4 degrees C; water vapor density, 1.50 g of water per m3) and outdoor environments (-22.4 to -33.2 degrees C; water vapor density, 0.706 and 0.247 g of water per m3). Parainfluenza virus type 1 at an initial titer of 3.75 log10 50% tissue culture infective doses per ml was inactivated after 4 days at room temperature and after 7 days outside. Parainfluenza virus type 2 and 3 at initial titers of 5.58 and 5.38 log10 50% tissue culture infective doses per ml were inactivated after 7 and 12 days, respectively, at room temperature and after 17 days of storage outside. Results indicate that the long-term survival of parainfluenza virus in either environment for up to 10 weeks is unlikely and probably did not provide the source of infectious virus responsible for the midisolation outbreaks of parainfluenza virus-related respiratory tract illnesses observed in this population during the 1978 winter season.
منابع مشابه
تعیین فراوانی عفونت ویروسی پاراآنفلوآنزا به روش ایمونوفلوئورسانس در عفونتهای حاد تنفسی
Background: Acute respiratory tract infections, both bacterial and viral, cause 4.5 million childhood deaths worldwide, most of which occur in developing countries. Parainfluenza viruses, of the paramyxoviridae family, are among the common causes of acute respiratory infections, giving rise to 30% of respiratory infections in children before school age. The four parainfluenza viruses that cause...
متن کاملSerological survey for antibodies against infectious bovine rhinotracheitis and parainfluenza 3 viruses among cattle in Iran
متن کامل
The Frequency Distribution of Parainfluenza, Adeno and Respiratory Syncytial Virus Infections in Children below 2 Years Old with Bronchiolititis, by Multiplex Polymerase Chain Reaction Method, Afzalipoor Hospital, Kerman, 2006
Background & Aims: Acute respiratory infections are common cause of mortality during childhood. This study was designed to determine the incidence of adenovirus, parainfluenza virus and respiratory syncytial virus in respiratory infections by Multiplex PCR method. Methods: This study included 168 children under 2 years of age with clinical diagnosis of bronchiolitis. Nasopharyngeal specimens we...
متن کاملAntigenic detection of Canine Parainfluenza virus in urban dogs with respiratory disease in Ahvaz area, southwestern Iran
Canine parainfluenza virus (CPiV) is one of the most common organisms isolated from dogs with signs of infectious tracheobronchitis (ITB). Distribution is apparently worldwide. Although CPiV may cause mild clinical infections, clinical diseases is expected to be more severe in dogs co-infected with bordetella bronchiseptica than with any these agents alone. The present study was conducted to d...
متن کاملHuman parainfluenza virus infection in severe acute respiratory infection cases in Beijing, 2014‐2016: A molecular epidemiological study
BACKGROUND Severe acute respiratory infection (SARI) threatens human health and even survival, causing a huge number of hospitalized patients every year. However, as one of the most common respiratory viruses circulated worldwide, the epidemiological and phylogenetic characteristics of human parainfluenza virus (HPIV) in these cases were not well known. OBJECTIVES To reveal the epidemiologica...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Applied and environmental microbiology
دوره 46 4 شماره
صفحات -
تاریخ انتشار 1983