Module 8 Flashcards
One Health
concept recognizing health of domestic animals connection to human health and the environment
Zoonotic Disease
disease that can be transmitted between animals and humans
Zoonotic diseases can be caused by…
(5)
virus
bacteria
prions
parasites
fungi
Some examples of zoonotic diseases
anthrax
rabies
hanta virus
bovine tuberculosis
3 pathways of disease transmission
direct
indirect
by vector
direct transmission
contact through touching infected
indirect transmission
shared food, unpasteurized milk, uncooked meat, contact with infected blood/feces/urine/saliva
transmission by vector
tick or mosquito spreading disease by drawing blood from infected animal, then feeding on uninfected animal
3 parts of the agent-host epidemiological triangle
host
agent
environment
if rabies is the agent, what are the host and environment
host-skunk
environment-forest
what is avian influenza caused by
virus
Low pathogenic avian influenza
no/low signs in birds
eg most influenza A viruses
Highly pathogenic avian influenza
causes severe disease and high poultry mortality
since 2003 WHO has announced >____ confirmed H5N1 cases, >_____ died
870
450
how do most human H5N1 cases occur
from contact with sick or dead poultry infected with H5N1
Avian influenza transmission cycles
domestic fowl–> shorebird and waterfowl (can go back to domestic fowl)
domestic fowl–> mammals (swine)–> humans
domestic fowl–> humans
there is particular concern for H5N1 in __________ _______ such as __________ or __________ that died in western china
migratory waterfowl
bar-headed geese
brown-headed gulls
H5N1 has caused mortality in over __ species of wild birds in Asia
40
> ____ birds died of H5N1 in 2005
6000
do migratory birds show signs of H5N1
rarely
poultry outbreaks of avian influenza risk factors (4)
increased population density
close proximity to lakes/wetlands
increased temperatures
reduced precipitation in cold season
in wild bird, H5N1 were associated with…
increased vegetation productivity
lower elevation
pigs are ________ hosts to high path H5N1, meaning
intermediate
they can spread to humans
Avian influenza management(6)
biosecurity (shower, all in all out, sectioning)
PPE
Vaccination
Location planning
sharing data
testing
what makes the one health approach so unique
it is very broad but very interconnected
3 factors of emerging infectious diseases
- recently increased in incidence or geographic/host range
- new variants assigned to known pathogens (influenza)
- newly resistant to antibiotics (MRSA)
Pathogen
infectious microorganism such as a virus, bacterium, protozoa, prion, or fungus
struggles and misconceptions of northern community dogs
harder to feed (higher prices)
restricted veterinary care
dogs have jobs, they are more than pets
risks of land food
dogs eating raw meat pass on pathogens
methods of the northern dog health study
collecting dog feces before and after deworming
collecting blood from community members to test for pathogens
results of northern dog health study
65% of 201 people tested had been exposed to 1/4 zoonotic parasites
highest percentage being echinococcus granulosus (48%)
how did toxocara change between 2010 and 2011
2010- 9%
2011- 0%
how did giardia change between 2010 and 2011
2010- 12%
2011- 2%
Canine infection mitigation (4)
treatments
PPE
Tying up to prevent contact
choosing lower risk dog foods
climate change key points
it is warming
it is us
we are sure
it is bad
we can fix it
climate definition
long term changes that are statistically significant regarding temperature, precipitation that are statistically measurable
relationship between temperature and CO2 concentration in the atmosphere
CO2 up temp uo
warming and CO2 relationship since the 1950s
warming has lagged behind CO2 increase
in order for human life to stay sustainable, CO2 concentration must stay below
350 ppm
in 2014, CO2 concentration crossed ___ppm
400
CO2 ppm for 2023
419
internal forcing mechanism of climate change
ocean variability
biological activity (modifies carbon and water cycles)