Partial Functional Rescue of Helicoverpa armigera Single Nucleocapsid Nucleopolyhedrovirus Infectivity by Replacement of F Protein with GP64 from Autographa californica Multicapsid Nucleopolyhedrovirus [PDF]
Two distinct envelope fusion proteins (EFPs) (GP64 and F) have been identified in members of the Baculoviridae family of viruses. F proteins are found in group II nucleopolyhedroviruses (NPVs) of alphabaculoviruses and in beta- and deltabaculoviruses ...
Feifei Yin +15 more
core +1 more source
Prions in Milk from Ewes Incubating Natural Scrapie [PDF]
Since prion infectivity had never been reported in milk, dairy products originating from transmissible spongiform encephalopathy (TSE)-affected ruminant flocks currently enter unrestricted into the animal and human food chain.
Bergonier Dominique +68 more
core +2 more sources
SARS-CoV-2 has caused the COVID-19 pandemic. B.1.617 variants (including Kappa and Delta) have been transmitted rapidly in India. The transmissibility, pathogenicity, and neutralization characteristics of these variants have received considerable ...
Li Zhang +21 more
doaj +1 more source
Survival of Trichinella papuae muscle larvae in a pig carcass maintained under simulated natural conditions in Papua New Guinea [PDF]
In Papua New Guinea, Trichinella papuae, a non-encapsulated species, is circulating among wild and domestic pigs and saltwater crocodiles. Since an important phase of the life cycle of nematodes of the genus Trichinella is the time of survival of ...
Ifor L. Owen +5 more
core +1 more source
A quantitative assessment of the amount of prion diverted to category 1 materials and wastewater during processing [PDF]
In this article the development and parameterization of a quantitative assessment is described that estimates the amount of TSE infectivity that is present in a whole animal carcass (bovine spongiform encephalopathy [BSE] for cattle and classical ...
Adkin, A. +5 more
core +4 more sources
Some effects of freezing in the leaf, and of citrate in vitro, on the infectivity of a tobacco necrosis virus [PDF]
SUMMARY: Preparations of the Rothamsted tobacco necrosis virus made from tobacco leaves that have been frozen while intact are less infective than preparations made from unfrozen leaves.
Pirie, N. W., Bawden, F. C.
core +1 more source
A Methodology for Determining Which Diseases Warrant Care in a High-Level Containment Care Unit
Although the concept of high-level containment care (HLCC or ‘biocontainment’), dates back to 1969, the 2014−2016 outbreak of Ebola virus disease (EVD) brought with it a renewed emphasis on the use of specialized HLCC units in the care ...
Theodore J. Cieslak +3 more
doaj +1 more source
Infectivity of Norovirus GI and GII from Bottled Mineral Water during a Waterborne Outbreak, Spain
During a waterborne outbreak of norovirus in Spain, we estimated 50% illness doses for a group of exposed (secretor) persons to be 556 (95% CI 319–957) genome copies/day for norovirus GI and 2,934 (95% CI 1,683–5,044) genome copies/day for norovirus GII.
Susana Guix +11 more
doaj +1 more source
Interactions between free-living amoebae and Cryptosporidium parvum: an experimental study
Free-Living Amebae (FLA) and Cryptosporidium oocysts occasionally share the same environment. From 2004 to 2016, Cryptosporidium was responsible for 60% of 905 worldwide waterborne outbreaks caused by protozoan parasites.
Lefebvre Marion +8 more
doaj +1 more source
Effect of Di-ethyl aminoethyl (DEAE) Dextran on the infectivity titre of sheep pox virus in-vitro and in-vivo [PDF]
The effect of diethyl aminoethyl (DEAE) dextran on the infectivity titre of sheep pox virus (SPV) was studied with different concentrations (25, 50, 75, 100 μg/ml) of DEAE-dextran on Vero cell culture. It was found that 25 and 50μg/ml were not toxic. The
Olfat E. Nakhla +3 more
doaj +1 more source

