A study performed by researchers from the U.S., Korea and Japan has found that acute viral infection is not a primary reason of acute exacerbation of idiopathic pulmonary fibrosis (IPF), a progressive, deadly disease resultant in thickening and scarring of the lungs. Previous studies had recommended viral infection might cause exacerbation of IPF in a majority of patients who have the condition, which occurs most often in people between 50 and 70 years of age. "The etiology of acute exacerbation of IPF remainder unknown, and occult viral infection has been projected as one possible cause," said Harold Collard, MD, director of the Interstitial Lung Disease Program at the University of California, San Francisco.
"The results of this study recommend that the majority of cases of acute exacerbation of IPF are not due to viral infection." IPF is thought to result from an irregular fibroproliferative response in the lung. As lung tissue becomes stiff and thick, lung function and breathing are spoil. In some patients, these changes happen gradually over time, while in others the condition may cause acute periods of severe worsening. In this study, the researchers enrolled 43 patients with sharp exacerbation of IPF from two medical centers between 2006 and 2009. In addition, 69 patients with either constant IPF or acute lung injury (ALI) were enrolled from a single medical center as control subjects.
In all cases, bronchoscopy was complete as part of patients' clinical evaluations. Lung fluid and blood samples were together and analyzed using three separate, highly sensitive viral DNA detection techniques to test for the attendance of both known and unknown viruses. Results of these tests exposed evidence of viral infection in 33 per cent of the patients with exacerbation of idiopathic pulmonary fibrosis patients, only four of whom had proof of common respiratory viral infections. No viruses were sense in the lung fluid from stable patients.
Rubella is a highly infectious viral disease characterized by slight fever, mild rash and swollen glands. Although most cases are mild, if rubella is contracted premature in pregnancy, it can spread from the mother to her developing baby throughout the bloodstream and result in birth defects and/or fetal death. As a result of extensive immunization, rubella does not circulate in the United States, but can be contracted through foreign travel. The reduce was greatest among children. Adults account for an increasing quantity of the few cases that still occur in United States.
These are often individuals who remain unvaccinated for sacred reason or are foreign born immigrants who come from areas where rubella vaccine is not regularly used. Rubella still remains a common disease in many parts of the world and the risk of experience to rubella outside of the United States is high. Travelers to countries where rubella cases still occur should be protected to rubella. Rubella is increase by direct contact with nasal or throat secretions of infected individuals. Rubella can also be transmitted by gasp in droplets that are sprayed into the air when an infected person sneezes, coughs or talks.
Rubella is a mild illness which may current few or no symptoms. Symptoms may include a skin complaint, slight fever, joint aches, headache, discomfort, runny nose, sore throat and reddened eyes. The lymph nodes just behind the ears and at the back of the neck may swell, causing some soreness and/or pain. The rash, which may be itchy, first appears on the face and progress from head to foot, enduring about three days. As many as half of all rubella cases happen without a rash. The common incubation period for rubella is 14 days; with a range of 12 to 23 days. There is no exact treatment for rubella. Rubella may be transmitted from seven days prior to to seven days after the rash appears.
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Polio is a viral disease which may change the spinal cord causing muscle weakness and paralysis. The polio virus enters the body through the mouth, usually from hands impure with the stool of an infected person. Polio is more common in infants and young children and occurs under conditions of poor hygiene. Paralysis is more regular and more severe when infection occurs in older individuals. Polio is spread when the stool of an infected person is introduced into the mouth of another person through impure water or food.
Oral-oral transmission by method of an infected person's spit may account for some cases. Patients are mainly infectious from seven to ten days before and after the onset of symptoms. However, patients are potentially infectious as long as the virus is present in the throat and feces. The virus persists in the throat for just about one week after the onset of illness and is excreted in the feces for three to six weeks. In up to 95 percent of people affected with polio have no symptoms. However, infected persons without symptoms can still extend the virus and cause others to develop polio.
About four to five percent of infected public have minor symptoms such as fever, muscle weakness, headache, nausea and vomiting. One to two percent of infected persons expand severe muscle pain and stiffness in the neck and back. Less than one percent of polio persones result in paralysis. The incubation period is commonly six to 20 days with a variety of three to 35 days. It is three types of polio virus. Lifelong protection usually depends on which type of virus a person contracts. Second attacks are exceptional and result from infection with a polio virus of a different type than the first attack.
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Measles is a highly contagious viral disease that can be very serious or yet fatal. It begins with a fever that last for a couple of days, followed by a cough, runny nose, and conjunctivitis (pink eye). A pimples starts on the face and upper neck, spreads down the back and trunk, then extends to the arms and hands, as well as the legs and feet. After about five days, the rash fades in the similar order it appeared. Serious complications of measles contain pneumonia and encephalitis.
It is extremely contagious. The measles virus lives in the mucus in the nose and throat of impure people. When they sneeze, cough or talk, droplets spray into the air and the droplets remain active and infectious on infected surfaces for up to two hours. Measles symptoms usually appear in two stages. In the first stage, which last two to four days, the individual may have a runny nose, cough and a slight fever. The eyes may become mottled and sensitive to light while the fever slowly rises each day, often peaking as high as 103° to 105°F. Koplik spots may also appear on the gums and within of the cheeks.
The second stage begins on the third to seventh day and consists of a red blotchy rash permanent five to six days. The rash frequently begins on the face and then spreads downward and outward, reaching the hands and feet. The reaction fades in the same order that it appeared, from head to extremities. Other symptoms contain weight loss, diarrhea and enlarged lymph glands all over the body. Symptoms generally appear in ten to 12 days, although they may happen as early as seven or as late as 18 days after exposure.
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Meningitis is fast acting infection, which mostly affects children and individuals with a weak immune system. There are two divide kinds of meningitis; viral and bacterial. Viral meningitis is really quite common. Although in unusual cases, it has caused fevers and seizures, it is not a serious illness. Bacterial meningitis, on the other hand, is a very serious disease. If not instantly treated, the disease can cause brain damage, and death.
The disease, Meningitis, is an irritation in lining of the spine and the brain. The bacteria adjacent the reason of bacterial meningitis is very common. Each bacteria, can be naturally be found in the nose and throat, in mostly young adults and children. The Meningitis bacteria is enlarge through coughing, sneezing, and kissing. It is extremely unusual that the bacteria actually becomes viral; damaging the immune system.
Initially, the symptoms of meningitis will be straight correlated to the inflammation. Eventually the individual will begin to skill vomiting, and even seizures. If you or a loved one begins to skill symptoms of meningitis, make sure to contact a doctor immediately. Depending on whether the enduring is a child or an adult, the doctor will prescribe a different injection. The meningitis C is the immunization for children, and the pneumococcal vaccin, for adults.
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