<< Chapter < Page Chapter >> Page >

Aardrykskunde

Graad 5

Gesondheid en welsyn

Module 34

Siektes: miv/vigs

MIV / VIGS-EMBLEEM

Aktiwiteit 1

Om ‘n konsep te definieer

[lu 1.3]

  • Na ‘n deeglike groepgesprek, formuleer kortliks ‘n definisie vir MIV , asook vir VIGS om die verskil duidelik te maak.

M iv:______________

Vigs:________________

Hierdie siekte het ‘n uitwerking op miljoene mense op ons kontinent alleen – so ook dwarsoor die wêreld. Die feit dat daar nog geen geneesmiddel hiervoor ontdek is nie, maak dit ‘n baie gevreesde siekte.

DIE MIV-VIRUS VEROORSAAK DIE SIEKTE VIGS

Die letters VIGS staan vir

Verworwe

Immuniteits-

Gebrek-

Sindroom

  • Oorsprong en aard:‘n Mens se liggaam het ‘n ingeboude immuniteitstelsel wat hom teen siektes en infeksies help beskerm. Die MIV-virus tas hierdie stelsel aan en verhoed dat dit effektief funksioneer. Die virus kom in die mens se liggaamsvloeistowwe voor en verswak die immuniteitstelsel sodat die liggaam dit moeilik vind om teen siektes soos TB, longontsteking en diarree te baklei. Daar kan slegs deur middel van ‘n bloedtoets vasgestel word of iemand met die virus besmet is.Soos met baie van die ander siektes, versprei Vigs makliker in digbevolkte gebiede, veral waar mense nie gesonde kos inneem nie. Die MIV-virus kan op die volgende maniere van een persoon na ‘n ander oorgedra word:
  • Wanneer ‘n persoon wat met die virus besmet is, onbeskermde seks (sonder die gebruik van ‘n kondoom) met iemand anders het en die semen of vaginale vloeistof met dié van ‘n ander meng.
  • Wanneer die bloed van ‘n besmette persoon met dié van ander meng. Dit kan tydens bloedoortappings gebeur, of as besmette spuitnaalde of skeermeslemme gebruik word.
  • ‘n Swanger vrou wat met die virus besmet is, kan dit na haar baba oordra.

Sedert hierdie gevreesde siekte in ongeveer 1980 vir die eerste keer gediagnoseer is, het dit baie vinnig versprei.

Aktiwiteit 2

Om statistiek met behulp van ‘n grafiek uit te beeld

[lu 1.1; 1.7]

  • Gebruik die volgende statistiese gegewens en stel ‘n blokgrafiek saam om die toename in MIV-gevalle tussen 1990 en 1999 uit te beeld.
Jaar Persentasie mense wat na raming met MIV besmet is
1990 0,7 %
1991 1,7 %
1992 2,2 %
1993 4 %
1994 7,6 %
1995 10,4 %
1996 14,2 %
1997 17 %
1998 22,8 %
1999 22,4 %

(Onthou om duidelike askalibrering en byskrifte, asook ‘n verklarende opskrif, vir jou grafiek te verskaf.)

  • Tipes simptome:
  • ‘n verswakte liggaam wat baie vatbaar is vir ander siektes.
  • Behandeling:

Hoewel vigs nog ‘n ongeneeslike siekte is, kan lyers wel sekere medikasie neem om die simptome te verlig. Die medikasie is egter baie duur.

  • Deurbraak:

Die MIV-virus is ‘n baie slim kalant wat die liggaam stilletjies binnedring en dan die eienskappe van ander liggaamselle aanneem. Sodoende kan dit ongemerk in die liggaam rondbeweeg en die menslike immuniteitselle infekteer. Navorsers aan die Pasteur-instituut in Frankryk voel dat hulle baie naby aan ‘n deurbraak is. Lees die koerantberig en bespreek die inhoud daarvan in jul groepe.

deurbraak in stryd teen vigs kom dalk binnekort

(SAPA-AFP)

In ‘n moontlike deurbraak in die stryd teen MIV/vigs is teenliggaampies gestimuleer wat die MI-virus dalk kan keer om menslike immuniteitselle te infekteer, het Franse navorsers onlangs bekend gemaak.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Sosiale wetenskappe: aardrykskunde graad 5. OpenStax CNX. Sep 22, 2009 Download for free at http://cnx.org/content/col10985/1.2
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Sosiale wetenskappe: aardrykskunde graad 5' conversation and receive update notifications?

Ask