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Displaying results 171 to 180 of 231.
Immunity
Innate Immunity – Acquired Immunity © HZI/Manfred Rhode T cells (shown in red) interacting with dendritic cells. The human immune system exists of a huge number of different cells with different functions. They occur in the blood as „white blood cells“. A…
Poliomyelitis
Poliomyelitis © AdobeStock/nobeastsofierce Poliovirus The pathogen, i.e. poliovirus, is a member of the enteroviruses that can proliferate in the human intestines and includes three different types - type 2 is considered to be eradicated, whereas type 1 and…
Measles
Measles - Fear of vaccination makes people ill © CDC / Dr. Edwin P. Ewing, Jr. Giant cell in a measles pneumonia; Fine tissue section Again and again headlines like "Measles epidemic in Berlin - Full risk, fatal consequences" (Süddeutsche Zeitung),…
Emerging Diseases
Emerging Diseases – A challenge for research, medicine and society © HZI/Verena Meier Researcher in the S3 laboratory at the HZI To eradicate infectious diseases forever: This vision is likely to remain wishful thinking. Even if medicine were able to find a…
HIV/AIDS
HIV/AIDS © HZI/Britta Meyer The AIDS pathogen HIV; graphic as RGB AIDS - acquired immunodeficiency syndrome - is a pandemic of global proportions and a prime example of a newly discovered pathogen's potentially devastating impact. AIDS did not begin its…
Clostridium difficile
Clostridioides difficile © HZI/Manfred Rohde Electron micrograph of the bacterium Clostridium difficile. In recent years, Clostridioides difficile ( formerly Clostridium difficile ), a gram-positive bacterium, has become one of the most common causes of…
Influenza
Influenza - a yearly infection © HZI/Britta Meyer Influenza virus It is quite common, but not very pleasant: The “flu”, an infection with influenza virus. It is transmitted via droplet infection between individuals. If you catch it, you are agonized with a…
Salmonellae
Salmonellae © HZI/Siegfried Weiß Salmonellae in a tumour Salmonellae often make the headlines in summer when they spoil a mayonnaise, a milk-based ice cream or whipped egg whites. Not rarely, infections are caused by careless, unhygienic handling of poultry…
Pseudomonas
Pseudomonas aeruginosa – a biofilm specialist © HZI Pseudomonas aeruginosa – a highly resistant bacterium. The widely dispersed bacterial rod Pseudomonas aeruginosa has a preference for colonising bodies of water and soil. The germ is frugal, robust,…
Enterohaemorrhagic Escherichia coli
Enterohaemorrhagic Escherichia coli – EHEC © HZI/Manfred Rohde Electron micrograph showing EHEC. EHEC bacteria are a dangerous subtype of E. coli, which are a common natural inhabitant of the human intestine. They produce a poisonous compound called Shiga…