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Tests from respiratory specimens for influenza A and B virus, respiratory syncytial virus, enteroviruses, _Mycoplasma pneumoniae_ and _Chlamydia_ spp. by antigen enzyme linked immunosorbent assay (ELISA) and/or polymerase chain reaction (PCR) were all negative

I was just wondering exactly about this last night as I was laying in bed before falling asleep.

Many test have been done on the 3 patients admitted on Saturday 15 March to the Isolation
Unit at Frankfurt, Germany. The patients had server upper respiratory infections. Blood was taking and cultures were watched for two types of Flu virus. Type A and B is Respiratory Syncytial Virus (RSV) usually causes symptoms of a simple upper respiratory tract illness or common cold. These symptoms include a stuffy or runny nose, sore throat, mild headache, mild cough, low-grade fever, and a general feeling of being ill. Enterovirusus are viruses that multiply in the stomach and are transmitted from person to person by the feces-oral route (ingestion disease). Mycoplasma pneumoniae is a human bacterium causing inflamed bronchial tubes and inflamed trachea and pneumonia. The researchers and lab workers used ELISA a useful and powerful method in the lab to test certain viruses and bacteria for antibodies. Another tool used to help the researchers was PCR (Polymerase Chain Reaction) will allow a short stretch of DNA to be amplified to about a million fold so that one can determine its size
and type. The tests the researchers used on the specimens all turned up negative. Antibodies were not present for Dengue, TYPE A and B Measles, Hantavirus. Mycoplasma Pneumonia, chlamydia_spp, were also negative. The researchers will be performing more tests.

The researchers have not concluded that the causes of the latest deadly outbreak of the Flu is being caused from Paramyxovirus. The finding may have been coincidental and the patient already had these particles in them but had immunity already from past exposure.

I tried to make that mess as easy to read as possible.