Microbiology – chapter 31 Vectrobrone and soilborne microbial diseases
Animal transmitted diseases
Zoonosis; animal disease that can be transferred to humans and cause disease in
humans, but not spread from human to human.
When the pathogen go to humans we do not use the term zoonosis
Transmission (overbrengen) trough;
Direct contact
Aerosols (spores)
Vector (arthropods which cause for disease)
Food
Rabies (hondsdolheid) in dog; dog bit human, transport virus particles to brain. It is
extreme mortaility.
Hendra in bats (vleermuizen); contact with bats does not infection humans but horeses.
Infection to horses can lead to infection to humans.
Arthropod-transmitted diseases
Arthropods transmit disease through biting or stinging (prikkelend);
Mosquitos (malaria, yellow fever)
Ticks (Lyme disease)
Lice (typhus- vlektyfus)
Horesfly (sleeping sickness, leishmanisosi)
Flease (plaque)
Transmitted pathogens;
Viruses; yellow fever, west nile virus
Bacteria; typhus, plaque, Lyme disease
Parasites; malaria, sleeping disease, leishmaniosis
Multicellular parasites; roundworms
Advantage for the pathogen;
Efficient spread (time, distance)
Multiplication in vector (arthropods which cause for disease)
Perforamtion of the skin
Often direct access to bloodstream
Consequences for the pathogen;
Survival of the pathogen dependent on survival host (because of virus)
Multiplication inside vector should not limit fitness vector
Animal transmitted diseases
Zoonosis; animal disease that can be transferred to humans and cause disease in
humans, but not spread from human to human.
When the pathogen go to humans we do not use the term zoonosis
Transmission (overbrengen) trough;
Direct contact
Aerosols (spores)
Vector (arthropods which cause for disease)
Food
Rabies (hondsdolheid) in dog; dog bit human, transport virus particles to brain. It is
extreme mortaility.
Hendra in bats (vleermuizen); contact with bats does not infection humans but horeses.
Infection to horses can lead to infection to humans.
Arthropod-transmitted diseases
Arthropods transmit disease through biting or stinging (prikkelend);
Mosquitos (malaria, yellow fever)
Ticks (Lyme disease)
Lice (typhus- vlektyfus)
Horesfly (sleeping sickness, leishmanisosi)
Flease (plaque)
Transmitted pathogens;
Viruses; yellow fever, west nile virus
Bacteria; typhus, plaque, Lyme disease
Parasites; malaria, sleeping disease, leishmaniosis
Multicellular parasites; roundworms
Advantage for the pathogen;
Efficient spread (time, distance)
Multiplication in vector (arthropods which cause for disease)
Perforamtion of the skin
Often direct access to bloodstream
Consequences for the pathogen;
Survival of the pathogen dependent on survival host (because of virus)
Multiplication inside vector should not limit fitness vector
