COVID-19 ( COronaVIrus Disease 19 ), SARS-CoV-2, coronavirus 2019.
|VIRUS GENERIC INFLUENZA 3D|
Legionella pneumophila is the bacterium associated with Legionnaires’ disease and Pontiac fever. Legionella transmission is via aerosols—the inhalation of mist droplets containing the bacteria
Respiratory transmission of this organism can lead to infection, which is usually characterized by a gradual onset of flu-like symptoms. Patients may experience fever, chills, and a dry cough as part of the early symptoms. Patients can develop severe pneumonia.
Legionnaires’ disease also has the potential to spread into other organ-systems of the body such as the gastrointestinal tract and the central nervous system. Accordingly, patients with advanced infections may experience diarrhea, nausea, disorientation, and confusion. Usually involve middle-aged or immunosuppressed individuals. Pontiac fever is also caused by L. pneumophila but does not produce the severity of the symptoms found in Legionnaires’ disease. The flu-like symptoms are still seen in Pontiac fever patients but pneumonia does not develop and infection does not spread beyond the lungs.
|WARTS (PAPILLOMA VIRUS)|
A type A virus, they are the most virulent pathogens in humans and cause the most severe disease. Remember the 1968-69 Hong Kong pandemic, subtype H3N2.