Pneumonia is a lung infection caused due to infection by virus and bacteria. It generally infects the alveoli of lungs or the air sacs. As the person lung is infected it generally results in respiratory problems like problem in breathing, regular cough and chest pain. The severity of the disease depends on the causing agent of the disease, person immune system, genetic factors and the age of the person. There are various types of pneumonia divided according to the causal agent: bacteria pneumonia, viral pneumonia, mycoplasma pneumonia. The people with lower immunity, older people and the people having early history of some disease like asthma are at higher risk of developing pneumonia. The common symptoms for pneumonia include chest pain, vomiting, rapid heart rate, difficulty in breathing and muscle pain. Chest X-ray and blood test can be done to diagnose the disease. Antibiotics and antiviral drugs can be given to treat the infection.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on September, 2014