Introduction: To compare the effects of 0.05% sodium fluoride (NaF) mouthrinse, GC Tooth Mousse and GC MI Paste Plus on white spot formation inhibition. Materials and Methods: Thirty pairs of extracted human premolars were cut in half mesio-distally with a disc. The teeth were coated with nail varnish, except a part of the buccal and/or lingual enamel, which was used as the test area, and then ...

White Spot Disease (WSD) is well known as a widespread viral disease in shrimps from 1992. Many studies focused on morphological, histopathological and epidemiological characteristic and pathogenecity of the disease but less on the determination of the severity of WSD using the histopathological features in target tissues. A generalized scheme for assigning a numerical qualitative value to sev...

white spot syndrome virus (wssv) is a highly pathogenic and prevalent virus affecting shrimp culture worldwide including iran. in the present study, a pair of primers was designed according to the sequence of vp 28 gene of wssv in the genbank. vp28 gene from an iranian wssv isolate (irvp28) was cloned, sequenced and expressed in escherichia coli bl21(de3) strain in order to produce vp28 protein...

  Shrimp farmers have been suffering from loss of production due to White Spot Disease (WSD) in the last decades. A few studies focused on the environmental factors predisposed WSD. Our study aimed to investigate the effects of the different salinities on occurrence of WSD. The treatments were 30 ppt, 40 ppt and 50 ppt in triplicate and corresponding untreated control groups. White Spot Virus (...

The signal freshwater crayfish Pacifastacus leniusculus was found to be susceptible to infection with white spot syndrome virus (WSSV). Histopathological observations of various tissues of virus-injected crayfish showed similar symptoms to those from WSSV-infected penaeid shrimp, but no appearance of white spots on the cuticle or reddish body colour were observed, although these are the promine...

White spot syndrome virus is a major pathogen of shrimp, causing economic loss to the aquaculture industry. For the first time, a complete de novo genome of an Indian isolate of this virus has been deciphered using Illumina and Nanopore sequencing technologies. The genome has 280,591 bp with 442 predicted coding genes.

White Spot Disease (WSD) is well known as a widespread viral disease in shrimps from 1992. Many studies focused on morphological, histopathological and epidemiological characteristic and pathogenecity of the disease but less on the determination of the severity of WSD using the histopathological features in target tissues. A generalized scheme for assigning a numerical qualitative value to sev...

viral symptoms indicative of iris yellow spot virus (iysv) were observed on onion in several fields near chenaran in khorasan razavi province. mechanical inoculation of herbaceous hosts with onion sap extracts from symptomatic plants showed similar symptoms to those described for iysv. the mechanically transmitted virus reacted only with antisera specific to iysv in das-elisa but not with antis...