Viruses are nothing if not diverse and dynamic infecting people animals and even plants.
viruses are very small infectious agents that replicates only inside the living cells of organisms.
Viruses Invade cells in your body and use components of those cells to help them multiply and this process of often damages destroys infected cells.
Viruses are found in almost every system on the earth and the most numerous type of biological entry. the study of viruses is known as virology a sub specialty of microbiology.
A viral disease is any illness caused by a virus. The origins of viruses in the evolutionary history of life are unclear and some may have evolved from plasmid spices of DNA that can move between cells while other may have evolved from bacteria.
Viruses are considered by some to be a life form because they carry genetic material, reproduce and evolved through natural selection.
Although they lack key characteristics such as cell structure that are generally considered necessary to count as life because they possesses some.
but not all such qualities viruses have been described as organisms at the age of life and as replicators.
Viruses spread in many ways. 1 transmission pathway is true disease bearing organisms known as vectors
for example viruses or often transmitted from plant to plant by insects that feed on plant SAP such as aphids and viruses in animals can be carried by blood sucking insects.
Influenza viruses are spread by coughing and sneezing.
Corona virus and rotavirus common causes of viral gastroenteritis are transmitted by the oral route passed by contact and entering the body in food are water.
HIV is one of the several viruses transmitted through sexual contact and by exposure to infected blood and the variety of host cells that here virus can insert is called its “host range”.
This can be narrow meaning of virus is capable of interacting few species for abroad meaning it is capable of interacting many.
Not all viral diseases or contagious but this means they are sent always spread from person to person but many of them or common examples of contagious viral diseases include the flu, the common cold HIV and herpes.
other types of viral diseases spread through other means such as the bite of an infected insect.
likewise certain viruses are familiar to as even as trains change like the seasonal flu and the other like the novel corona virus 2019 NCOV at the heart of the current international outbreak or new threads.
The virus was first identified Wuhan the capital city of the Chinese provinces Hubei.
The new corona virus add to the non family of viruses that is linked with the common cold. To other corona viruses SARS (for severe acute respiratory syndrome) and MERS (middle eastern respiratory syndrome) have also been the causes of viral outbreaks.
Earlier and more detailed surveillance have allowed experts to more closely study the new corona virus compared with when SARS and MERS first emerged. Nevertheless there is still so much that we don’t know namely how much of earth read 2019 NCOV made force worldwide still not completely clear experts say.
But experts say whether a virus is family or exotic does not determine necessarily how much of a danger it poses for that reason while emerging threads like or taken seriously
it is important to keep perspective clinic and advise and not to become complacent about more common viruses like the seasonal flu.
by compassion millions of people get the seasonal flu and tens of thousands die from it annually.
Also the severity varies from here to wear and the clinic and say the seasonal few poses for greater danger in the US than any other viruses.
Protecting against the flu and the other viruses
viruses have different mechanisms by which they produce disease in an organism which depends largely on the viral species.
Multi cellular organisms if in a cells die the whole organism will start to suffer the effects.
Mechanism at the cellular level primarily include cell lyses the breaking open and subsequent death of the cell Although viruses cause disruption of healthy resulting in disease that exist relatively harmlessly within an organism and
example would include the ability of the herpes simplex virus which cause cold scores to remind in a dormant state with in the human body and this is called latency and this is a characteristic of the herpes viruses including
which causes glandular fever and varicella zoster virus, which causes chickenpox and shingles.
Most people have been infected with at least one of these types of herpes virus.
It is difficult to preciously tally the impact of the seasonal flu as many causes aren’t confirmed are don’t result in a person seeking medical attention
but during the 2018 to 2019 flu season alone the centers for disease control and prevention esteem needs influenza virus infection caused in the US and the 37.4 million to 42.9 million symptomatic illnesses, 36400 to 61200 deaths.
How well a vaccine is matched with flu strain where is from season 2 season increasing or decreasing at effectiveness
but it still protects many from getting the flu reduces disease severity in those who do not get it and decreases overall spread of the viruses export emphasize.
Experts say it is important to resistant the purge 2 Outlook the thread post by this common condition.” Flu is definitely kind of underplayed”.
In fact hand washing with soap and water is perhaps the single most important safeguard against getting viral infection clinicians says. In addition stay home when you are sick with any infection disease.
Some of the common cold are the stomach flu or minor and go away on their own within a few days there are many viral diseases and others however or more serious.
Instead treatment usually focuses on managing symptoms and supporting the immune system with plenty of rest and hydration. Unlike bacterial infections viral diseases don’t respond to antibiotics.