patent. adjective pronounced, pay-tent Open, unobstructed, referring to a duct, lumen, or vessel noun pronounced, pah-tent A document that grants an inventor in terms of a determined number of years, the exclusive right to make use of and sell his invention.nvestigators into the effects of the prostaglandins have reported that closure of a patent ductus arteriosus can be produced in preterm infants by administration of an inhibitor of prostaglandin formation.
Coxsackie B virus infection may also induce aseptic meningitis. As a group, they are the most common cause of unexpected sudden death, and may account for up to 50% of such cases.s of 2008, there is no well-accepted treatment for the Coxsackie B group of viruses. Palliative care is available, however, and patients suffering chest pain or stiffness of the neck should be examined for signs of cardiac or central nervous system involvement, respectively.
Coxiella burnetii (Q-Fever). The pathogen Coxiella burnetii is a gramnegative bacterium and belongs to the family Rickettsiaceae. It is the causative agent of Q-Fever, an acute rickettsial disease.It can be considered the most infectious disease in the world, as a human being can be infected by a single bacterium. It can be found worldwide, including tropical countries, with the exception of New Zealand.he chronic form of Q fever is very similar to inflammation of the inner lining of the heart, which can occur months or decades following the infection. It is fatal if left untreated, however with the correct treatment the mortality rate falls under 10%.