Infection, Immunity + Pathogenesis Flashcards
How does a sneeze transmit disease?
As we sneeze we produce a large number of aerosols - within these are huge numbers of infectious particles!
A single sneeze can release 100 thousand infectious viral particles.
What is correct about cytotoxic T lymphocytes?
Cytotoxic T Lymphocytes have the CDS molecule!
Chancroid is caused by…
Haemophilus ducrevi
The most common outcome of infection with Mycobacterium tuberculosis is…
Latent tuberculosis
Zoonoses are infections that…
Occur in animals and humans
Replication of Plasmodium in the liver cell is known as…
The exoerythrocytic cycle
The common myeloid progenitor gives rise to…
Monocytes
Virulence factors may be…
Toxins
Leukocidins
Proteases
Flagella
What causes a discharge from the GU tract?
Gonorrhoea
Which infectious agent has a stage known as an elementary body?
Chlamydia trachomatis
Non-lethal multiplication of Yersinia pestis in FLEAS and wild RODENTS is known as the…
Sylvatic cycle
Thalassemias gives resistance to…
Malaria
What is NOT part of adaptive immunity?
Skin
People who are at most risk of tuberculosis in the UK are NOT…
Those who are sexually promiscuous people
Rabies is transmitted by…
Direct transmission
What 2 statements about phagocytes are INCORRECT?
Neutrophil phagocytes are derived from monocytes
The phagosome recognises bacteria using the T-cell receptor
What 2 activities can cytotoxic T cells perform?
Release Perforin to create pores in the target cell membrane
Release Granzyme to induce Apoptosis of an infected cell
The common cold can be caused by which 2 organisms?
Rhinovirus
Coronavirus
What2 statements about Chlamydia are INCORRECT?
Asymptomatic chlamydia is NOT transmissible
Vaccination against chlamydia IS effective
What 2 statements about immune response cells are correct?
B cells produce antibodies
Natural killer cells are derived from the Lymphoid Progenitor Cell
Which molecules allow sub typing of Influenza A?
Hemagglutinin + Neuraminidase
What neurotransmitter is blocked by the Tetanus toxin?
Glycine!
What molecule would you use to treat Gonorrhoea?
Ceftriaxone
