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Samenvatting Virologie - cursus lessen prof. Van Ranst

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Samenvatting/Cursus Virologie op basis van lessen prof. Van Ranst. Geïllustreerd met afbeeldingen.

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Virologie
SAMENVATTING




Robin Buyse
3E BACHELOR GENEESKUNDE | 2021-2022

,Inhoudsopgave
HOOFDSTUK 1: INLEIDING ...................................................................................................................... 3

1.0 VOORAF ................................................................................................................................................. 3
1.1 GESCHIEDENIS ......................................................................................................................................... 3
1.2 VIRALE STRUCTUUR................................................................................................................................... 5
1.3 TAXONOMIE ............................................................................................................................................ 9
1.4 REPLICATIE ............................................................................................................................................ 11

HOOFDSTUK 2: DIAGNOSTIEK ............................................................................................................... 15

2.1 RECHTSTREEKS: AANTONEN VAN VIRUSSEN .............................................................................................. 15
2.2 ONRECHTSTREEKS: AANTONEN VAN ANTISTOFFEN .................................................................................... 21

HOOFDSTUK 3: HIV ............................................................................................................................... 23

3.1 OORSPRONG EN ONTDEKKING ................................................................................................................... 23
3.2 TRANSMISSIE ......................................................................................................................................... 25
3.3 VIROLOGIE............................................................................................................................................. 26
3.4 EPIDEMIOLOGIE ...................................................................................................................................... 28
3.5 SYMPTOMEN EN ZIEKTEVERLOOP ............................................................................................................... 29
3.6 LABORATORIUM DIAGNOSTIEK ................................................................................................................... 31
3.7 THERAPIE .............................................................................................................................................. 32

HOOFDSTUK 4: INFLUENZA ................................................................................................................... 35

4.0 LINK MET COVID-19 ................................................................................................................................ 35
4.1 ALGEMEEN ............................................................................................................................................ 36
4.2 PANDEMIEËN (GESCHIEDENIS) ................................................................................................................... 39
4.3 MAATREGELEN ....................................................................................................................................... 43

HOOFDSTUK 5: COVID-19 ..................................................................................................................... 49

5.1 CORONAVIRUSSEN .................................................................................................................................. 49
5.2 COVID-19 ............................................................................................................................................ 50

HOOFDSTUK 6: HUMAAN PAPILLOMAVIRUS (HPV) ............................................................................... 55

6.1 ALGEMEEN ............................................................................................................................................ 55
6.1 CUTAAN TROPISME ................................................................................................................................. 56
6.1.1 Cutaan goedaardig ..................................................................................................................... 56
6.1.2 Cutaan kwaadaardig .................................................................................................................. 56
6.2 MUCOSAAL TROPISME ............................................................................................................................. 57
6.2.1 Mucosaal goedaardig ................................................................................................................. 57
6.2.2 Mucosaal kwaadaardig .............................................................................................................. 57
6.3 HPV-VACCINATIE.................................................................................................................................... 61


1

,HOOFDSTUK 7: HEPATITISVIRUSSEN ..................................................................................................... 63

7.0 VIRALE HEPATITIS .................................................................................................................................... 63
7.1 HEPATITIS A VIRUS HAV .......................................................................................................................... 65
7.2 HEPATITIS B VIRUS HBV .......................................................................................................................... 66
7.3 HEPATITIS C VIRUS HCV........................................................................................................................... 68
7.4 HEPATITIS D VIRUS HDV .......................................................................................................................... 70
7.5 HEPATITIS E VIRUS HEV ........................................................................................................................... 70
7.6 HEPATITIS F VIRUS HFV ........................................................................................................................... 70
7.7 HEPATITIS G VIRUS HGV .......................................................................................................................... 70
7.8 HEPATITIS H VIRUS HHV .......................................................................................................................... 70
7.9 HEPATITIS I VIRUS HIV ............................................................................................................................. 70
7.10 TRANSFUSION TRANSMITTED VIRUS TTV ................................................................................................... 70

HOOFDSTUK 8: MAZELEN, BOF EN RUBELLA (EXANTHEEMZIEKTEN)...................................................... 71

8.1 MAZELEN .............................................................................................................................................. 71
8.2 BOF...................................................................................................................................................... 71
8.3 RUBELLA ............................................................................................................................................... 72

HOOFDSTUK 9: HERPESVIRUSSEN ......................................................................................................... 73

9.0 INLEIDING .............................................................................................................................................. 73
9.1 HERPES SIMPLEX VIRUS TYPE 1 EN 2 (HSV 1/2) ........................................................................................... 74
9.2 VARICELLA ZOSTER VIRUS (VZV) ................................................................................................................ 75
9.2.1 Varicella (primo-infectie) ............................................................................................................ 75
9.2.1 Zoster (reactivatie) ..................................................................................................................... 77
9.3 CYTOMEGALOVIRUS (CMV)...................................................................................................................... 78
9.4 EPSTEIN BARR VIRUS (EBV) ...................................................................................................................... 79
9.5 HUMAAN HERPES VIRUS 6/7 (HHV 6/7) .................................................................................................... 80
9.6 HUMAAN HERPES VIRUS 8 (HHV 8) ........................................................................................................... 81




2

, Hoofdstuk 1: Inleiding
1.0 Vooraf

Virussen hebben een slechte reputatie (deels onverdiend). Meeste virussen hebben we geen
last van (bv. plantenvirussen). In deze cursus vnl. over de paar virussen die ziekteverwekkers
zijn. Ook bacteriën hebben virussen: bacteriofagen. Meer zelfs: alle levende entiteiten
hebben virussen, behalve virussen zelf (alleszins nog niet ontdekt). Virussen willen zich
genetisch vermenigvuldigen. Een virus wil ons eigenlijk niet ziek maken, het is zelfs dom. De
“slimste” (vaak oudere) virussen berokkenen ons dan ook weinig last. Het zijn de “pubers” van
de virussen die ziekteverwekkend zijn (bv. Sars-COV2). Tot slot kunnen immuniteitsproblemen
leiden tot problemen met virussen (bv. papillomavirussen).

1.1 Geschiedenis

Virologie is een moderne wetenschap. Bacteriologie bestaat al veel langer. Virologie bestaat
uit vele deeldisciplines: vaccinatie, global health…

- tabaksmozaïekvirus: eerste gevisualiseerde virus via X-ray diffractie


• Adolf E Mayer
o ontdekte dat het sap van zieke tabaksplanten die hij vermaalde de gezonde
ging besmetten
o conclusie: tabaksmozaïek is overdraagbaar


• Dmitri Ivanovski
o filterde sap van ziek vermalen blad met porseleinfilter (houdt bacteriën tegen)
en bracht dit filtraat aan op een gezond blad à gezonde blad werd ook ziek
o conclusie: ziekteverwekker nog steeds door filter
- kon dus geen bacterie zijn

• Martinus Beijerinck
o gebruikte als eerste term “virus” (=vergif)




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