Wie is Delta?
Wie is Delta?

Wie is Delta?

Navorsers in Brittanje het bevind die mees algemene simptome vir die Delta-variant is soortgelyk aan wat mense tydens ’n slegte verkoue ervaar.
Henriette Lamprecht
Henriette Lamprecht – Die hoogs aansteeklike Delta-variant wat in weefselmonsters van bevestigde Covid-19-gevalle in die Khomasstreek gevind is, is in Mei as ’n “kommerwekkende variant” deur die Wêreldgesondheidsorganisasie (WHO) verklaar.

’n Variant kry dié status wanneer daar toenemende bewyse is dat dit meer oordraagbaar is, meer ernstige siekte veroorsaak of die doeltreffendheid van entstowwe of behandelings verlaag.

Volgens navorsing is Delta, amptelik bekend as B.1.617.2, tot op hede die mees aansteeklike van die bekende variante, insluitend die Alpha-variant wat eerste in Brittanje voorgekom het.

Epidemioloë bepaal onder meer die oordraagbaarheid van ’n nuwe variant deur wat bekend staan as die “sekondêre aanvalkoers” te ondersoek. Dit behels die naspoor van die noue kontakte van mense wat met verskillende weergawes van die virus besmet is en om dan te kyk hoeveel ander het positief getoets.

Volgens ’n studie wat in The Lancet verskyn het, het navorsers bevind die risiko vir hospitalisasie het met die Delta-variant verdubbel.

Navorsers in Brittanje het bevind die mees algemene simptome vir dié variant is nou kopseer, seer keel, loopneus en koors, soortgelyk aan wat mense tydens ’n slegte verkoue ervaar.

Volgens die WHO is die variant nou reeds in meer as 95 lande waar gevalle van Covid-19 gestyg het.

Met verwysing na die doeltreffendheid van entstowwe teen Delta stem die meeste wetenskaplikes wat die ondersoek gedoen het saam dat mense wat ten volle ingeënt is, se risiko vir ernstige siekte, hospitalisasie of sterfte is laag.

’n Ontleding deur Public Health England het bevind twee dosisse AstraZeneca wat in Namibië saam met Sinopharm gebruik word, was 92% doeltreffend. ’n Vorige ontleding het bevind ’n enkele dosis van ’n entstof teen Covid-19, is minder doeltreffend teen simptomatiese siekte. In gevalle waar ’n persoon wat ten volle ingeënt is met die Delta-variant geïnfekteer word, was dit meestal matige simptome.

Die variant is aanvanklik in Indië in Desember 2020 geïdentifiseer. Wetenskaplikes is dit eens dat dit vinniger en gouer versprei as ander variante en dit bind sterker aan reseptore van longselle.

Dit mag ook ’n effense voordeel hê in die infektering en verspreiding tussen mense wat vroeër in die pandemie Covid gehad het of wat swak of onvolledige entstof-immuniteit het. Wetenskaplikes maan bestaande entstowwe is doeltreffend teen Delta, maar slegs wanneer mense ten volle ingeënt is.
– Bronne: medicalnewstoday, nbc-news, WHO, CDC.
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Premier League: Manchester City 5 vs 1 Wolves | Brentford 0 vs 0 Fulham | Sheffield United 1 vs 3 Nottingham Forest | Burnley 1 vs 4 Newcastle | Arsenal 3 vs 0 Bournemouth | Luton Town 1 vs 1 Everton | Chelsea 2 vs 0 Tottenham Hotspur LaLiga: Mallorca 0 vs 1 Atletico Madrid | Girona 4 vs 2 Barcelona | Real Madrid 3 vs 0 Cadiz | Real Sociedad 2 vs 0 Las Palmas | Getafe 0 vs 2 Athletic Club SerieA: Cagliari 1 vs 1 Lecce | Sassuolo 1 vs 0 Inter Milan | Monza 2 vs 2 SS Lazio | Torino 0 vs 0 Bologna European Championships Qualifying: Plymouth Argyle 1 vs 0 Hull City | Birmingham City 1 vs 0 Norwich City | Coventry City 1 vs 2 Queens Park Rangers | Stoke City 4 vs 0 Bristol City | Swansea City 0 vs 1 Millwall FC | Leeds United 1 vs 2 Southampton | Ipswich Town 2 vs 0 Huddersfield Town | Sunderland 0 vs 2 Sheffield Wednesday | Rotherham United 5 vs 2 Cardiff City | Middlesbrough 3 vs 1 Watford | Leicester City 0 vs 2 Blackburn Rovers | West Bromwich Albion 3 vs 0 Preston North End English Championship: Plymouth Argyle 1 vs 0 Hull City | Birmingham City 1 vs 0 Norwich City | Coventry City 1 vs 2 Queens Park Rangers | Stoke City 4 vs 0 Bristol City | Swansea City 0 vs 1 Millwall FC | Leeds United 1 vs 2 Southampton | Ipswich Town 2 vs 0 Huddersfield Town | Sunderland 0 vs 2 Sheffield Wednesday | Rotherham United 5 vs 2 Cardiff City | Middlesbrough 3 vs 1 Watford | Leicester City 0 vs 2 Blackburn Rovers | West Bromwich Albion 3 vs 0 Preston North End Katima Mulilo: 14° | 33° Rundu: 14° | 32° Eenhana: 13° | 33° Oshakati: 15° | 32° Ruacana: 16° | 34° Tsumeb: 16° | 31° Otjiwarongo: 14° | 30° Omaruru: 14° | 32° Windhoek: 12° | 27° Gobabis: 14° | 28° Henties Bay: 14° | 20° Wind speed: 18km/h, Wind direction: S, Low tide: 10:44, High tide: 04:42, Low Tide: 22:59, High tide: 17:11 Swakopmund: 16° | 17° Wind speed: 20km/h, Wind direction: SW, Low tide: 10:42, High tide: 04:40, Low Tide: 22:57, High tide: 17:09 Walvis Bay: 17° | 23° Wind speed: 25km/h, Wind direction: SW, Low tide: 10:42, High tide: 04:39, Low Tide: 22:57, High tide: 17:08 Rehoboth: 14° | 29° Mariental: 17° | 31° Keetmanshoop: 17° | 31° Aranos: 16° | 30° Lüderitz: 14° | 24° Ariamsvlei: 16° | 33° Oranjemund: 13° | 21° Luanda: 25° | 30° Gaborone: 15° | 29° Lubumbashi: 13° | 27° Mbabane: 15° | 29° Maseru: 10° | 25° Antananarivo: 12° | 23° Lilongwe: 17° | 28° Maputo: 18° | 31° Windhoek: 12° | 27° Cape Town: 14° | 17° Durban: 18° | 30° Johannesburg: 16° | 25° Dar es Salaam: 22° | 29° Lusaka: 16° | 29° Harare: 13° | 29° Currency: GBP to NAD 23.17 | EUR to NAD 19.9 | CNY to NAD 2.54 | USD to NAD 18.5 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.31 | EGP to NAD 0.38 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.67 | ZWL to NAD 0.04 | BRL to NAD 3.64 | RUB to NAD 0.2 | INR to NAD 0.22 | USD to DZD 133.95 | USD to AOA 834.06 | USD to BWP 13.64 | USD to EGP 47.9 | USD to KES 133.98 | USD to NGN 1379 | USD to ZAR 18.5 | USD to ZMW 27.1 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 76428.31 Up +0.50% | Namibian Stock Exchange (NSX) Overall Index 1700.24 Up +0.45% | Casablanca Stock Exchange (CSE) MASI 13403.47 Up +0.61% | Egyptian Exchange (EGX) 30 Index 26113.71 Up +6.81% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 301.81/OZ DOWN -0.0011 | Copper US$ 4.53/lb UP +1.46% | Zinc US$ 2 924.30/T DOWN -0.08% | Brent Crude Oil US$ 83.49/BBP DOWN -0.0105 | Platinum US$ 955.87/OZ UP +0.28% Sport results: Premier League: Manchester City 5 vs 1 Wolves | Brentford 0 vs 0 Fulham | Sheffield United 1 vs 3 Nottingham Forest | Burnley 1 vs 4 Newcastle | Arsenal 3 vs 0 Bournemouth | Luton Town 1 vs 1 Everton | Chelsea 2 vs 0 Tottenham Hotspur LaLiga: Mallorca 0 vs 1 Atletico Madrid | Girona 4 vs 2 Barcelona | Real Madrid 3 vs 0 Cadiz | Real Sociedad 2 vs 0 Las Palmas | Getafe 0 vs 2 Athletic Club SerieA: Cagliari 1 vs 1 Lecce | Sassuolo 1 vs 0 Inter Milan | Monza 2 vs 2 SS Lazio | Torino 0 vs 0 Bologna European Championships Qualifying: Plymouth Argyle 1 vs 0 Hull City | Birmingham City 1 vs 0 Norwich City | Coventry City 1 vs 2 Queens Park Rangers | Stoke City 4 vs 0 Bristol City | Swansea City 0 vs 1 Millwall FC | Leeds United 1 vs 2 Southampton | Ipswich Town 2 vs 0 Huddersfield Town | Sunderland 0 vs 2 Sheffield Wednesday | Rotherham United 5 vs 2 Cardiff City | Middlesbrough 3 vs 1 Watford | Leicester City 0 vs 2 Blackburn Rovers | West Bromwich Albion 3 vs 0 Preston North End English Championship: Plymouth Argyle 1 vs 0 Hull City | Birmingham City 1 vs 0 Norwich City | Coventry City 1 vs 2 Queens Park Rangers | Stoke City 4 vs 0 Bristol City | Swansea City 0 vs 1 Millwall FC | Leeds United 1 vs 2 Southampton | Ipswich Town 2 vs 0 Huddersfield Town | Sunderland 0 vs 2 Sheffield Wednesday | Rotherham United 5 vs 2 Cardiff City | Middlesbrough 3 vs 1 Watford | Leicester City 0 vs 2 Blackburn Rovers | West Bromwich Albion 3 vs 0 Preston North End Weather: Katima Mulilo: 14° | 33° Rundu: 14° | 32° Eenhana: 13° | 33° Oshakati: 15° | 32° Ruacana: 16° | 34° Tsumeb: 16° | 31° Otjiwarongo: 14° | 30° Omaruru: 14° | 32° Windhoek: 12° | 27° Gobabis: 14° | 28° Henties Bay: 14° | 20° Wind speed: 18km/h, Wind direction: S, Low tide: 10:44, High tide: 04:42, Low Tide: 22:59, High tide: 17:11 Swakopmund: 16° | 17° Wind speed: 20km/h, Wind direction: SW, Low tide: 10:42, High tide: 04:40, Low Tide: 22:57, High tide: 17:09 Walvis Bay: 17° | 23° Wind speed: 25km/h, Wind direction: SW, Low tide: 10:42, High tide: 04:39, Low Tide: 22:57, High tide: 17:08 Rehoboth: 14° | 29° Mariental: 17° | 31° Keetmanshoop: 17° | 31° Aranos: 16° | 30° Lüderitz: 14° | 24° Ariamsvlei: 16° | 33° Oranjemund: 13° | 21° Luanda: 25° | 30° Gaborone: 15° | 29° Lubumbashi: 13° | 27° Mbabane: 15° | 29° Maseru: 10° | 25° Antananarivo: 12° | 23° Lilongwe: 17° | 28° Maputo: 18° | 31° Windhoek: 12° | 27° Cape Town: 14° | 17° Durban: 18° | 30° Johannesburg: 16° | 25° Dar es Salaam: 22° | 29° Lusaka: 16° | 29° Harare: 13° | 29° Economic Indicators: Currency: GBP to NAD 23.17 | EUR to NAD 19.9 | CNY to NAD 2.54 | USD to NAD 18.5 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.31 | EGP to NAD 0.38 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.67 | ZWL to NAD 0.04 | BRL to NAD 3.64 | RUB to NAD 0.2 | INR to NAD 0.22 | USD to DZD 133.95 | USD to AOA 834.06 | USD to BWP 13.64 | USD to EGP 47.9 | USD to KES 133.98 | USD to NGN 1379 | USD to ZAR 18.5 | USD to ZMW 27.1 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 76428.31 Up +0.50% | Namibian Stock Exchange (NSX) Overall Index 1700.24 Up +0.45% | Casablanca Stock Exchange (CSE) MASI 13403.47 Up +0.61% | Egyptian Exchange (EGX) 30 Index 26113.71 Up +6.81% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 301.81/OZ DOWN -0.0011 | Copper US$ 4.53/lb UP +1.46% | Zinc US$ 2 924.30/T DOWN -0.08% | Brent Crude Oil US$ 83.49/BBP DOWN -0.0105 | Platinum US$ 955.87/OZ UP +0.28%