Topic 6 - Infection Flashcards
2 Examples of Endoparasites
Helminths
Protozoa
3 examples of exoparasites
Fleas
Lice
Bed bugs
What do Amoebas invade
Large bowel linings
How are Ameobas spread
Water contamination –> faeces
Name an example of Sporozoa
Plasmodium Falciparum
Name 2 examples of Helminths
Cestodes
Trematodes
Name an example of a Cestodes
What does this infect
Symptoms?
Tapeworm
Intestine
Asymptomatic
Structure of cestodes
Segmented
Flat
Name an example of a Trematodes
Fluke
What are the 2 forms of fungi
Yeast // Mould
In terms of strands, what are filamentous
In terms of cells, what are unicellular (fungi)
Moulds
Yeast
Tinea Pedis causes what?
Athletes foot
Tinea Corporsis
Ringworm
Cryptococcus neoformans can lead to what
Meningitis
Streptococcus Pneumoniae in terms of structure are found like what?
Where can you find them
Diplococci
Nose and throat
CRR5 / gp120 can be found on what
HIV
Is norovirus acute / chronic
Acute
Name a latent bacteria infection
Herpes // varicella zooster virus
What does EPV infect? (2)
B cells
Epithelial tract of nasopharynx
Symptoms of EPV
Glandular Fever
What do Prions lack?
Lack nucleic acid
Name 2 diseases caused by Prions
Creutzfeldt Jakob Disease (CJD)
Kuru
how is CJD transmitted (2)
Human growth hormone injection
Surgical instruments
How much normal flora is found in faeces (bacteria/gram)
10^11 - 10^12
Cystitis is the infection of where
causes?
Lower Urinary Tract
e.coli (gra negative bacilli)
Migration example (endogenous infection type)
E.coli from bowel entering bladder
Perforation example (endogenous infection type)
Faecal Perotintitis
Blood spread example (endogenous infection type)
Endocarditis
How can endocarditis arise from?
What type of bacteria can be responsible?
Dental work –> bacteria enter blood stream
Streptococci
Impetigo is caused by what sort of contact
Indirect contact
Impetigo is caused by what?
What does it lead to?
Staphylococci / streptococci
Superficial skin infection
Indirect contact transmission (3 types)
Hands // equipment // Furniture
3 organisms involved in indirect contact transmission
MRSA
Clostridium difficile
Norovirus gastroenteritis
Name an organism responsible for infection with Injury type of transmission
Clostriudium tetani
What is hepatitis B
Virus
Mother to baby is what type of transmission
Vertical
What type of infection is a baby most at risk through vertical transmission during pregnancy
Rubella
What type of infection is a baby most at risk through vertical transmission at birth
Herpes
What type of infection can spread through breast milk?
HIV
Infectious Dose Defintiion
Minimum number of organisms required to cause disease
Streptolysin is produced by what?
Group A streptococci
Cholera toxin activates what?
What does this do (3)
Adenyl Cyclase
Increases cAMP
Reduces Na+ Reabsorption
Increases Cl- Secretion
What does Ebola Infect (2)
Macrophages
Dendritic Cells
What inflammation occurs in Ebola?
Blood vessels inflammation
Dengue fever is spread by what
Aedes Mosquito
Campylobacter can be found in what?
Undercooked chicken
If Neutrophils are raised, what does this potentially entail?
Bacterial Infection
If lymphocytes are raised, what does this potentially entail
Viral infection
If Eosinophils are high, what does this potentially entails
Parasitic infection
What can a sputum test identify?
Pneumonia
what can a faecal sample identify>
Gastroenteritis
What can a throat swab identify
Tonsilitis
Ziehl neelson can identify what?
TB
Calcofluor can identify what?
Fungi
Legionnaires disease can be detected by what?
Antigen test in a urine sample
A rapid hepatitis B test is done by what?
Blood test
Initial Ig responder
What comes later (time period)
IgM
IgG (10-14)
Mupirocin is produced by what?
Pseudomonas fluroescens bacteria
Symptomatic Supportive therapy example
Paracetamol
A protection method with those with TB is what?
Putting patient in a negative pressure room
Passive immunisation involves what?
Natural production of Ig from infection like chickenpox
Active immunisation involves what?
Production of Ig from vaccination
Name 4 organisms that dont have vaccinations for
Meningococcal group B
Hep C
HIV
Malaria