Famili Asfarviridae

Famili Asfarviridae
Famili Asfarviridae

Asfarviridae is a family of viruses that primarily infects swine, resulting in an onset of African swine fever. There is a single genus in this family: Asfivirus. The name of this family and genus are derived from the acronym: African swine fever and related viruses. Only a single species has been described to date for this genus.

This group of viruses are the only known arthropod borne DNA viruses. The viruses in this family are all enveloped and have double-stranded DNA genomes. Continue reading

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Famili Adenoviridae

Famili Adenoviridae
Famili Adenoviridae

Adenoviruses infect birds, humans, and many other mammals and other organisms. They usually cause respiratory infections, but they can also cause conjunctivitis, gastroenteritis, cystitis, and rash illness. Adenoviruses are divided into four genera: Aviadenovirus (which infects birds), Mastadenovirus (which infects mammals), Atadenovirus and Siadenovirus (which infect a variety of organisms). (sources: CDC, Davison et al.) Continue reading

Famili Ascoviridae

Famili Ascoviridae
Famili Ascoviridae

Die Familie Ascoviridae mit der einzigen Gattung Ascovirus umfasst behüllte Viren mit einer doppelsträngigen, zirkulären DNA als Genom, die ausschließlich bei Insekten der Ordnung Schmetterlinge (Lepidoptera) zu finden sind. Der Name der Familie leitet sich aus dem griechischen ασκός für „Schlauch, Säckchen“ ab, was auf die für die Ascoviren typische Abschnürung von virushaltigen Membranbläschen bei infizierten Zellen hindeutet. Die erste Virusspezies der Familie wurde 1983 entdeckt. Continue reading

Varicella Zoster Virus (VZV)

Varicella Zoster Virus (VZV)
Varicella Zoster Virus (VZV)

Varicella zoster virus (VZV) is one of eight herpes viruses known to infect humans (and other vertebrates). He often causes chickenpox in children; also disease shingles (herpes zoster) and postherpetic neuralgia (nerve pain skin) in adults.

Primary VZV infection is chickenpox (varicella), which rarely lead to complications including encephalitis (acute inflammation of the brain) or pneumonia (pneumonia). Even if the clinical symptoms of chicken pox has been resolved, VZV becomes dormant (inactive) in the nervous system of infected people (but one day could become active again). Continue reading

Virus Malacoherpesviridae

Virus Malacoherpesviridae
Virus Malacoherpesviridae

The Malacoherpesviridae are a family of DNA viruses that cause diseases in molluscs.

The family name Malacoherpesviridae is derived from Greek word ‘μαλακός (malacos) meaning ‘soft’ and from Greek word ‘μαλάκιον (malakion) meaning ‘mollusc.

Within this family two species have been described: Ostreid herpesvirus 1 in 2009 and Haliotid herpesvirus 1 in 2010. Continue reading

Virus Alloherpesviridae

vius Alloherpesviridae
virus Alloherpesviridae

Alloherpesviridae is a family of viruses within the order Herpesvirales. This family includes the species that infect fish and amphibians. Phylogenetic studies have confirmed the validity of this family and suggest that it may be divided into two clades: one consisting of viruses from cyprinid and anguillid hosts and the other of viruses from ictalurid, salmonid, acipenserid and ranid hosts.1
History

This family was created in 2005.
Taxonomy

Four genera have been recognised in this family but a number of species remain unclassified. The family appears to be divisible into three families2 but this probably needs confirmation with additioanl studies before being generally accepted. Continue reading

Vius Siphoviridae

Siphoviridae_virion
Siphoviridae_virion

Fusobacterium nucleatum is a periodontal pathogen that has been directly associated with the development and progression of periodontal disease, a widespread pathology that affects the support tissues of the tooth. We isolated a new bacteriophage (FnpΦ02) that specifically infects this bacterium. Transmission electron microscopy showed that the virion is composed of an icosahedral head and a segmented tail. The size of the phage genome was estimated to be approximately 59 kbp of double-stranded DNA. The morphological features and the genetic characteristics suggest that FnpΦ02 is part of the Siphoviridae family. Using one-step growth and adsorption experiments, the latent period, burst size, and adsorption rate were estimated to be 15 h, 100 infectious units per cell, and 7.5 × 10⁻¹⁰ ml min⁻¹, respectively. A small fragment of phage DNA was cloned and sequenced, showing 93% nucleotide identity with the phage PA6 of Propionibacterium acnes and amino acid identity with fragments of two proteins (Gp3 and Gp4) of this phage. To our knowledge, FnpΦ02 is the first phage described to infect Fusobacterium nucleatum and provides the base for future exploration of phages in the control of periodontal disease. Continue reading

Virus Podoviridae

Podoviridae_Virion
Podoviridae_Virion

The Podoviridae are a family of bacteriophages. Unlike the other families of tailed viruses this family has short tails that are non contractile.

There are at least 74 species in this family.
Virology

The viron is nonenveloped with a head-tail structure. There are 9 structural proteins.

The head is ~60 nanometers (nm) in diameter, consists of 72 capsomers and is icosahedral with a T = 7 symmetry. The head protein has a molecular mass of ~38 kiloDaltons and is present in 460 copies per virion.

The tail is non-contractile and has 6 short subterminal fibers. It is thick, rod-shaped and built of stacked disks. The maximum length is ~17 nm.

The double stranded DNA genome is linear ~40-42 kilobases in length and encodes ~55 genes. The guanine + cytosine content is ~50%. It has terminally redundant sequences and is nonpermuted. By weight the genome constitutes ~50% of the viron. Continue reading

SymbOS RommWar

SymbOS.RommWar
SymbOS.RommWar

SymbOS.RommWar including trojan virus category. Viruses of this type will put the kind of ‘small program’ to the target phone. The program can then make phone targets malfunction.

The symptoms of dysfunction depending on the version of the ROM software on the phone. Effects caused by rommwar diverse. Start from the hang, the phone restarts itself, to make the power button did not work. However, in some cases, these symptoms did not appear and the phone can run as usual.

Since Cabir, the virus first emerged as a scourge, the next generation of the virus posed a threat that is not less scary. No less than 148 viruses are ready to attack mobile phones with Symbian operating system. Not to mention the threat of viruses for Windows Mobile. Continue reading

Trojan SymbOS/Pbstealer

Trojan:SymbOS/Pbstealer.
Trojan:SymbOS/Pbstealer.

Disinfection
F-Secure Mobile Anti-Virus is capable to detecting and deleting the Pbstealer.E trojan.

Pbstealer.E tries to remove itself after sending data over Bluetooth. This self-removal doesn’t always work,  but fortunately it can be also removed by uninstalling it with Symbian application manager.
Additional Details
Trojan:SymbOS/Pbstealer.E steals information from a phone (Contacts, Notepad, Calendar, etc) and attempts to forward the stolen data to a random Bluetooth-accessible phone within range.

Payload

Pbstealer.E is distributed in a malicious SIS file that contains Pbstealer.E application file and string resource. Continue reading