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Coccidioides immitis -- a fungal pathogen.
A pathogen is a disease carrying organism.
A pathogen is an organism that can cause a disease.
Pneumonia can result from a variety of causes, including infection with bacteria, viruses, fungi, or parasites.
By definition, a pathogen is an organism that causes disease. So the "problems" are dependent on the particlar organism.
Parasite is an organism, that lives off another organism. Pathogen is something that causes disease in another organism. So the answer is "Yes". eg Malaria is a disease caused by a parasite.
A disease producing organism is a pathogen. An invasion of the body by a pathogen is an infection. Although an infection is a generalized name for the body's response to any invasion by any pathogen.
It depends on what is causing the pneumonia. There are bacterial causes of pneumonia such as streptococcus pneumoniae and bacteria are prokaryotic. Viruses can also cause pneumonia and are not really considered prokaryotes or eukaryotes. Fungi are eukaryotes and can also cause pneumonia.
Pneumocystis jirovecii causes pneumonia in people with AIDS. This pathogen was formerly known as Pneumocystic carinii.
A pathogen.
oomycete plant pathogen
pathogen