Thymic atrophy has been described as a consequence of infection by several pathogens including highly pathogenic avian influenza virus and is induced through diverse mechanisms.
In vitro, EcN has been shown to prevent invasion of host cells by several pathogens, including Salmonella, Yersinia, Shigella, Legionella, Listeria and adherent-invasive E. coli [14], [15], [16].
Consumption of nonpasteurized milk has been associated with serious illnesses caused by several pathogens, including Campylobacter spp., Shiga toxin producing Escherichia coli, and Salmonella enterica serotype Typhimurium (3, 4 ).
Genomic DNA or RNA from several pathogens, including viruses, bacteria, and protozoa, is sensed and recognized by TLR9, which is also capable of recognizing modified forms of DNA such as unmethylated CpG islands.
Cells undergo apoptosis even under physiological conditions, but several pathogens including parasites have evolved mechanisms to disrupt this machinery, by either upregulating [ 38, 43] or downregulating [ 44] it for their survival in the host.
The doctors' ties harbored several pathogens, including those that can lead to staph infections or pneumonia.
Leaf assays of transgenic plants showed enhanced resistance against several pathogens including significant resistance against TMV challenge.
The treatment of several pathogens, including MRSA, is problematic.
Since then, it has been found that queens can be infected by several honeybee pathogens, including Nosema sp. and viruses [20] [22].
This technique has been used to identify genes expressed by several intracellular pathogens, including Mycobacterium tuberculosis [ 32], Salmonella enterica serovar Typhi [ 33, 34], Escherichia coli O157 H7 [ 35], Legionella pneumophila [ 31], and Ehrlichia ruminantium [ 36].
P. patens is infected by several known plant pathogens, including Pectobacterium species, Botrytis cinerea, and Pythium species, and in response to infection defense mechanisms similar to those induced in flowering plants are activated [ 24- 26].
