• strains
  • Thus, sequencing Venezuelan YFV strains over a wide geographic area and temporal distribution might be valuable to test the hypothesis of local maintenance in Venezuela and to determine whether the virus moves regularly between Trinidad and Venezuela or between Venezuela and Brazil. (thefreelibrary.com)
  • This antibody is specific for the envelope protein of the wild (Asibi) and vaccine strains of yellow fever virus. (genetex.com)
  • This suggested that the YF virus strains isolated from the same geographic area and during a short period of time had evolved slowly. (ajtmh.org)
  • This reaction, called YEL-AVD, causes a fairly severe disease closely resembling yellow fever caused by virulent strains of the virus. (wikipedia.org)
  • epidemic
  • During the Yellow Fever Epidemic of 1793 in Philadelphia, 5,000 or more people were listed in the official register of deaths between August 1 and November 9. (wikipedia.org)
  • The vast majority of them died of yellow fever, making the epidemic in the city of 50,000 people one of the most severe in United States history. (wikipedia.org)
  • They crowded the port of Philadelphia, where the first yellow fever epidemic in 30 years began in the city in August. (wikipedia.org)
  • In 1998 an epidemic of yellow fever killed many Howler monkeys near the city of Altamira, Pará in the eastern Amazon basin, in Brazil. (wikipedia.org)
  • The Yellow Fever Epidemic of 1793 struck during the summer in Philadelphia, Pennsylvania, where the highest fatalities in the United States were recorded. (wikipedia.org)
  • In 1802-1803, an army of forty thousand sent by First Consul Napoleon Bonaparte of France to Saint Domingue to suppress the Haitian Revolution mounted by slaves, was decimated by an epidemic of yellow fever (among the casualties was the expedition's commander and Bonaparte's brother-in-law, Charles Leclerc). (wikipedia.org)
  • outbreak
  • In December 2016, Brazil reported the country's largest yellow fever (YF) outbreak in decades. (cdc.gov)
  • When mass amounts of brown howlers are found dead it is a good inclination that there may be a yellow fever outbreak occurring. (wikipedia.org)
  • A preliminary finding that the strain of the yellow fever virus was closely related to a strain identified in a 1971 outbreak in Angola was confirmed in August 2016. (wikipedia.org)
  • On 20 June, the health minister declared the outbreak of yellow fever in three provinces, including the capital of DR Congo, Kinshasa. (wikipedia.org)
  • Spanish colonists recorded an outbreak in 1648 on the Yucatan peninsula of Mexico that may have been yellow fever. (wikipedia.org)
  • 2016
  • On 20 January 2016, the health minister of Angola reported 23 cases of yellow fever with 7 deaths among Eritrean and Congolese citizens living in Angola in Viana municipality, a suburb of the capital of Luanda. (wikipedia.org)
  • On 22 March April 2016, the WHO was notified of 21 deaths from yellow fever in the Democratic Republic of the Congo, some in a province that borders Angola. (wikipedia.org)
  • envelope
  • Inside the endosome, the decreased pH induces the fusion of the endosomal membrane with the virus envelope. (wikipedia.org)
  • immunization
  • The World Health Organization now pushes for child immunization programs which will slowly decrease yellow fever cases as well as other fatal diseases that were once a major problem. (adobe.com)
  • On 17 May 2013, the World Health Organization (WHO) Strategic Advisory Group of Experts on immunization (SAGE) announced that a 'booster' dose of yellow fever (YF) vaccine, ten years after a primary dose, is not necessary. (wikipedia.org)
  • genome
  • YFV is a spherical, enveloped virus of 40 to 50 nm in diameter(1,5), and has a single-stranded, positive- sense RNA genome(1,4,5). (msdsonline.com)
  • closely
  • Moreover, all the viruses were closely related and no correlation could be established with the apparent variations in virulence in nature. (ajtmh.org)
  • Haemagogus
  • Haemagogus species have also been found to carry the Mayaro virus and Ilheus virus. (wikipedia.org)
  • A form of the disease, termed "jungle yellow fever", was shown to be carried by Red Howler monkeys (Alouatta seniculus insulanus Elliot) that provided a continuous reservoir for the disease, which was then spread by the Haemagogus s. spegazzini mosquito which normally inhabits rainforest regions, both at ground level and in the treetops. (wikipedia.org)
  • Isolation of Yellow Fever Virus from Nulliparous Haemagogus (Haemagogus) janthinomys in Eastern Amazonia" by B. Mondet, et al. (wikipedia.org)
  • Haemagogus at Encyclopedia of Life "Isolations of yellow fever virus from Haemagogus leucocelaenus in Rio Grande do Sul State, Brazil" by Pedro F.C. Vasconcelos, et al. (wikipedia.org)
  • bacteria
  • and he wanted to test the hypothesis that yellow fever was caused by spirochaete bacteria instead of a virus. (wikipedia.org)
  • In simple terms, physical barriers prevent pathogens such as bacteria and viruses from entering the organism. (wikipedia.org)
  • Flies infected with the bacteria are more resistant to RNA viruses such as Drosophila C virus, norovirus, flock house virus, cricket paralysis virus, chikungunya virus, and West Nile virus. (wikipedia.org)
  • In leafminers of the species Phyllonorycter blancardella, Wolbachia bacteria help their hosts produce green islands on yellowing tree leaves, that is, small areas of leaf remaining fresh, allowing the hosts to continue feeding while growing to their adult forms. (wikipedia.org)
  • Isolation
  • 1. Isolation and characterization of yellow fever vaccine (YFV-17D) specific adaptive immune responses: characterize the magnitude and quality of YFV specific T cell responses, antibody secreting cells and memory B cells. (clinicaltrials.gov)
  • 1957. Isolation of Ilhéus Virus from Sabethes chloropterus captured in Guatemala in 1956. (wikipedia.org)
  • occurs
  • In about 15% of people within a day of improving, the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. (wikipedia.org)
  • victims
  • Adding to the alarm was that, unlike with most fevers, the principal victims were not the very young or very old. (wikipedia.org)
  • rhesus
  • There are here presented the results observed following inoculation of the two above mentioned viruses into M. rhesus , both simultaneously and at intervals up to forty-eight hours-the viscerotropic virus always being inoculated first. (ajtmh.org)
  • This followed Adrian Stokes' inducing yellow fever in rhesus macaques from India). (wikipedia.org)
  • He found the virus was not transmittable to rhesus macaques, and that only some mice developed symptoms. (wikipedia.org)
  • immune
  • The objective of this study is to study immune memory generated against the yellow fever vaccine (YFV) in participants who recently received the YFV vaccine. (clinicaltrials.gov)
  • To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. (wikipedia.org)