Title: QUICK ASSESSMENT 2
1QUICK ASSESSMENT 2
PLEASE BE SILENT PLEASE DO NOT OPEN PAPERS
YET PLEASE FILL IN THE COVER
2QUICK ASSESSMENT 2
PLEASE BE SILENT THIS IS A 15 MINUTE TEST
3QUICK ASSESSMENT 2
PLEASE REMAIN SILENT SOME PEOPLE ARE STILL
WORKING PLEASE PASS PAPERS TO END OF ROWS
4LECTURE 17 AU REVOIR
Transformism is a fact of life and death
5gt 1,400 MICROBE SPECIES KILL PEOPLE
- Viruses, Bacteria, Protozoa
- 17 million human deaths per year
- About 1 in 3 human deaths
- But lt 1 in 50 in UK
6CURRENT MICRO-EVOLUTION OF MICROBES
- ANTIBIOTIC DRUG RESISTANCE
- HIV
- H5N1 BIRD FLU
7H5N1 BIRD FLU
8FLU VIRUSES
- 0.35 million humans deaths per year
- 1918 pandemic gt 25 million deaths
- RNA Viruses typical of bird guts
9 H5N1 8 genes
10PANDEMIC FLU VIRUSES
- KEY MUTATIONS
- Gene NS blocks interferon
- Gene R acceptance into host cell
11FLU VIRUS RECEPTORS
Birds Humans
12FLU VIRUS RECEPTORS
Birds Humans
Pigs Horses
13H5N1 BIRD FLU
- - First known case, UK chickens
- 1993 - Virulent form, Vietnam chickens
- 1997 - First human cases, Hong Kong,
- 33 mortality
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15H5N1 BIRD FLU
2000 - Virulent form, wild birds, SE Asia
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17QINGHAI, China 6,000 dead geese
18BAR-HEADED GEESE
19GREY GEESE
Bar-headed Greylag Goose
Goose
20HYBRID GREYLAG x BAR-HEADED
21CAMEL
22LLAMA
23HYBRID CAMA
24VICUNA
25EVIDENCE FOR EVOLUTION
- TRANSFORMISM OCCURS
- HOMOLOGIES
- FOSSILS
26EVIDENCE FOR EVOLUTION
- TRANSFORMISM OCCURS
- HOMOLOGIES
- FOSSILS
27THE END OF THE BEGINNING
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