The detection and identification of Newcastle disease
virus (NDV) has never been straightforward. Serologically
indistinguishable pathotypes produce a wide spectrum of
disease that ranges from a severe respiratory, neurologic,
or enteric disease with high mortality to an asymptomatic
infection. Extensive use of ND vaccine strains further
complicates the serological differentiation...
The frequency of aphid transmission of cucumber mosaic virus
from diseased plants at different times after inoculation was determined.
A cycle of infectious virus was found. Primary leaves
of lima bean plants were inoculated mechanically when the first trifoliate
leaf appeared and were kept at different temperatures. At
24° C...
The use of petroleum oil prevented, to varying degrees: the
transmission of three stylet-borne viruses in three different crops.
The use of oils resulted in a marked improvement in the number of
lily bulbs harvested from treated plots as compared to the number of
lily bulbs harvested from untreated plots....
Erythrocytic inclusion body syndrome (EIBS), a viral disease
of salmon, was investigated. Reliable artificial infections were
established in coho salmon (Oncorhynchus kisutch) via
intraperitoneal injection of homogenized kidney, spleen, and blood
from naturally infected animals. By examining the exposed fish
periodically for viral inclusion bodies and hematocrits, the disease
progression...
The aquaculture industry in the UK has experienced substantial growth in
the past two decades. The productivity and competitiveness of the sector to
a great extent depends on the favourable health status that the sector enjoys
relative to other major salmon producing countries in Europe. Currently the
UK is subject...
In host-associated microbiomes, the mechanisms that regulate community composition or the principles that govern dynamics remain far from clear. However, understanding how the structure of microbial communities shift as the system moves away from a healthy state is critical to assessing disease progression and to formulate any potential mitigation strategy....
Monoclonal antibodies were developed against USDA
challenge strain of infectious laryngotracheitis virus (ILTV).
Indirect immunofluorescence test was used to detect antibodies
in supernatants of hybridomas. Hybridoma cells were developed
by fusing Sp 2/0 myeloma cells with spleen cells obtained from
mice immunized four times with partially purified USDA
challenge strain...