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Wyszukujesz frazę "Cryptosporidium species" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Detection and molecular identification of Cryptosporidium species in laboratory rats (Rattus norvegicus) in Ibadan, Nigeria
Autorzy:
Ayinmode, Adekunle Bamidele
Ogbonna, Nkeiruka Fortunate
Widmer, Giovanni
Powiązania:
https://bibliotekanauki.pl/articles/972090.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
laboratory rat
microscopy
pcr
sequencing
Cryptosporidium species
Opis:
To study the occurrence of Cryptosporidium infection in laboratory rats (Rattus norvegicus) raised for experimental usage, 134 faecal samples were obtained from two rearing houses in Ibadan and examined for the presence of Cryptosporidium oocyst using the modified acid fast staining technique. Cryptosporidium species in 2 samples positive for microscopy were further characterized by a nested polymerase chain reaction (PCR) amplifying the 18S rRNA gene. Two of 134 samples were positive for the Cryptosporidium oocysts. Sequencing of the small-subunit rRNA amplicons identified the species in the two PCR positive samples as Cryptosporidium andersoni and Cryptosporidium rat genotype. These findings showed that laboratory rat is a potential reservoir for diverse Cryptosporidium species and suggests that laboratory rats should be screened for Cryptosporidium infection prior to experiments, especially where pathogen free animals are not available. This the first report to identify Cryptosporidium species infecting laboratory rats in Nigeria.
Źródło:
Annals of Parasitology; 2017, 63, 2; 105-109
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological warfare agents
Autorzy:
Japark, S. K.
Powiązania:
https://bibliotekanauki.pl/articles/1119308.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Alphaviruses
Brucella species
Burkholderia mallei and pseudomallei
Chlamydia psittaci
Coxiella burnetti
Cryptosporidium parvum
Escherichia coli
Salmonella species
Shigella dysenteriae
Toxins; Rickettsia prowazekii
Vibrio cholerae
Opis:
Various types of biological weapons have been known and practiced throughout history, including the use of biological agents such as microbes and plants, as well as biotoxins and the venoms that can be derived from them. In ancient civilisations, the attempt was to infect and kill enemies by throwing cadavers into water wells. Emperor Barbarossa during the battle of the Italian town, Tortona, in 1155, did the same. In modern times, America and the Soviet Union also undertook biological warfare and anti-biological warfare protection activities. This even intensified after WWII. When the Soviet forces captured and interrogated some Japanese scientists in 1945, they utilized the obtained information in their own biowarfare program and their research accelerated in 1946. Following this, a series of new biowarfare study centres and production facilities was constructed in the 1950s. The Soviet biowarfare program included tularemia, anthrax, brucellosis, plague, glanders, marburg virus, smallpox virus, and VEE virus. During the time of the Korean War, it was believed that biowarfare agents were used by America against Soviet Union. The Americans had began their own program in Fort Detrick (former Camp Detrick) in 1943 and a new production facility at Pine Bluff Arsenal in Arkansas was constructed. The United States of America started producing tons of Brucella suis in 1954. In the peak year of their program, they involved about 3,400 people and a number of agents: Bacillus anthracis, Francisella tularensis, Brucella suis, Coxiella burnetti, Venezuelan equine encephalitis virus, yellow fever, botulin, Staphylococcal enterotoxin, and the anti-crop agents Pyricularia oryzae and Puccinia graminis. Due to public pressure, President Nixon declared a unilateral halt in 1969 to biological weapon projects. The only permitted research was defensive, such as diagnostic, vaccines, and chemotherapies tests – as evidenced in the UK where the base in Porton Down was converted into a defence institution.
Źródło:
World News of Natural Sciences; 2016, 4; 1-19
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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