Raj Prasad

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When bacteria and other viruses invade the body of an organism and destroy or harms its tissues then it is known as infection. The pathogens that are responsible for the causing infections are: Viruses which includes viroids and also prions Bacteria Fungi- which can also...

Sinusitis is an inflammation or swelling of the tissue lining the sinuses. Healthy sinuses are filled with air. But when they become blocked and filled with fluid, germs can grow and cause an infection. Conditions that can cause sinus blockage include: The common cold Allergic rhinitis, which is swelling of the lining of...