Viruses

MECHANISMS OF VIRAL PATHOGENICITY A CLINICALLY BIASED ACCOUNT OF COMMON PATHOGENIC VIRUSES THERAPY OF VIRAL INFECTIONS  

A simple mind map to organize the DNA and RNA viruses into similar groups for easier memorization.  

This is unusual as hepatitis viruses go, as it very rarely causes acute infection. People will only become aware of infection when they develop serious liver disease later in life. 80% of those exposed to the virus will develop chronic infection. Spontaneous late clearance of the disease is very rare. Blood transfusion and blood products are a major means of transmission. It is also though that it can be sexually transmitted, but this is not particularly common.  

Hepatits E is clinically very similar to Hepatitis A.  Aetiology Water borne similar to hep A(shell fish and water melons!). 30% of dogs, rodents and pigs carry the virus Commonly seen in Asia and the Far East Presentation Very similar to that of hep A: Many patients are asymptomatic. They may never know they have had the disease Very rarely it can be lifethreatening May be a prodromal phase    

Epidemiology The most common STI in the UK Estimated that 10-20% of the population have a genital HPV infection, but only 1% of the population are symptomatic at any one time   Pathology The result of HPV infection. There are >100 types of HPV, and only several cause warts. HPV types 6 and 11 account for >90% of cases   Spread  

Herpes Simplex Virus/ Varicella Zoster/ Sixth Disease  

• In the family Hepadnaviridae; common name: Hepadnavirus • Known as the smallest DNA virus • Double stranded, circular 42 nm DNA genome;Virion also called Dan…  

Bad weather and a delayed flight helped a British doctor discover that a virus could cause cancer.  

The recent discovery of new neurological syndromes that result from neuronal infection with polyomavirus JC, also known as JC virus, and the presence of this virus in the grey matter are currently under debate.1 It has been suggested that JC virus is associated with cognitive decline, dementia, strokes, and brain tumours,2 and this hypothesis has been commented on in the BMJ.3  

Naked Scientists - 18th Mar 2012 - Why Viruses Don't Infect the Same Cell Twice  

Naked Scientists - 29th Jan 2012 - Are any viruses good for you?  

Naked Scientists - 7th Nov 2010 - Cancer - Hallmarks and Hit and Run Viruses  

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The authorities in Saudi Arabia advise wearing masks and gloves when handling camels to avoid spreading the Mers virus, which has killed at least 133 in the kingdom.  

US health officials confirmed a second case in the country of Mers, a virus that has killed at least 145 people, mostly in Saudi Arabia.  

A mystery virus known as the Middle East Respiratory Syndrome (Mers) has claimed an increasing number of lives in Saudi Arabia, where fear of the condition is growing, as the BBC's Gulf correspondent Mark Lobel reports from Dubai.  

Two Florida healthcare workers who came in contact with a confirmed Mers case are being tested for the virus after beginning to show flu-like symptoms.  

A second case emerges of a passenger who travelled through Heathrow Airport and later tested positive for the Middle East Respiratory Syndrome (Mers) virus.  

Two Florida healthcare workers who came in contact with a confirmed Mers case and began showing flu-like symptoms have tested negative for the virus.