[Thread] 1. How does @SAHPRA1 operate?
Helen Rees, board chair:
Governing Acts require Saphra to be:
1. Transparent, fair and objective
2. Allow Sahpra to co-operate with other regulatory authorities
3. Evaluate applications of all medical devices
2. @sahpra is an autonomous entity:
1. Sahpra reports to parliament, the health minister and the Sahpra board
2. The health min appoints Sahpra's board
3. The CEO makes operational decisions, not the board
3. Boitumelo Semete-Makokotlela, @SAHPRA1 CEO: Sahpra is internationally recognised for its stringent standards. Part of the reason why the WHO has chosen SA to host the new #mRNA tech transfer hub (for #COVID vaccines), is because of the detailed, rigorous processes of Sahpra.
4. @SAHPRA1 helped to investigate the fake vaccines which entered the country last year from China and they worked with the police to stop the falsified jabs from being distributed in SA. The occurrence of fake medicines in SA is lower than in many other countries.
5. What does the CEO do? The CEO doesn't make decisions alone. There is extensive consultation with academics and scientists. If an applicant isn't satisfied with a @sahpra decision, they can appeal. First to the CEO and then to the health minister.
6. @sahpra is part of very few African regulators who are part of an international coalition of medicines regulators such as the FDA, TGA (Australia), EMA (Europe) and NAFDAC (Nigeria) to collaborate on #COVID19 product approvals. They share data and advice.
7. @SAHPRA1 doesn't procure medicines, that's the role of the public/private healthcare system. Sahpra's job is to establish whether those products are safe + whether they do what their manufacturers say they do. Once approved, both the private + public health sectors can use it.
8. These are the steps @SAHPRA1 follows in order to establish if a product such as a #COVIDVaccine is safe and effective. Sahpra also looks at manufacturing processes after it's approved a product: if production processes are not sound post approval, they can revoke an approval.
9. @SAHPRA1 assesses whether there are impurities in products to establish if they're safe. They also look at how products are packaged.
10. @SAHPRA1 looks at Phase 3 trial data that has been submitted for a product such as a #COVIDVaccine. It reassess the raw data and the way efficacy has been calculated.
11. With regards to #COVID19, @SAHPRA1 doesn't just assess vaccines. It is currently evaluating 50+ antibody COVID tests and it has overseen the approval of PPE equipment such as specialised masks, and also ventilators and treatments such as dexamethasone.
12. @SAHPRA1 can withdraw product approvals. In the case of Section 21 (emergency use authorisation) approvals (most #COVID vaccines are approved this way), it can withdraw approvals immediately. For market authorisations, there's a longer process.
13. Normally, @sahpra takes about 20 months to approve a vaccine. For #COVID19 jabs, that process has been sped up to about 90 work days.

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More from @miamalan

2 Jul
[Thread] 1. Nicholas Crisp (@HealthZA): How fast can we get #COVID vaccines into the community? We administered 122 701 doses in past 24 hours (that's the nr captured by the #EVDS, so not paper entries yet).
2. The numbers on @HealthZA's vaccine dashboard will still increase for some of the previous days because we enter backlog paper entries daily (those paper entries are added to the actual day on which the vaccinations happened). sacoronavirus.co.za/latest-vaccine…
3. 300 000 #JnJ vaccines have been administered so far in the basic education sector. Second #Pfizer vaccinations started on Monday at general sites (so for the general roll-out). In the future the government will break down the 1st and 2nd doses on @HealthZA's vaccine dashboard.
Read 12 tweets
2 Jul
[Thread] 1. Glenda Gray, @MRCza: How effective are different #COVID vaccines @ the Beta variant (B.1.351)?
* #JnJ: 64%
* Novavax: 48.6%
* AstraZeneca: 10% Image
2. Early lab data shows that the #JnJ vaccine works against both the Beta and Delta variants, but better against the #DeltaVariant. Image
3. Do we need to boost the #JnJ vaccine with a second shot (currently you only get one shot)? Not yet. Data shows that an immune response is maintained over time from a single shot for up to eight months after vaccination. Image
Read 5 tweets
2 Jul
[Thread] 1. Penny Moore, @nicd_sa: How do we know if a vaccine works against a variant? We take blood from people who will get a vaccine before and after vaccination and analyse the immune responses. Image
2. For the #JnJ vaccine, we look at immune responses 28 days after vaccination We ask: How well did the antibodies produced as a result of the vaccine, kill the virus?
3. The amount of a certain type of antibody - neutralising antibodies - present in your blood, predicts how well the vaccine will work. The levels matter: the more neutralisasing antibodies, the better the protection. Image
Read 5 tweets
29 Jun
[Thread] 1. How many JnJ/Pfizer jabs has SA received?
#JnJ: 300 000 (17 Jun) + 1, 253, 600 (24 Jun) = 1, 553, 600
#Pfizer: 325 260 x 4 (3, 10, 17, 24 May) + 636 480 x 3 (31 May, 7, 14 Jun) + 1, 274, 130 (21 Jun) + 1,392, 300 (COVAX, 27 Jun) = 5, 876, 910

TOTAL = 7, 430, 510
2. How many #COVID doses has SA used?
By 5pm on June 28: 2, 308, 225 doses (according to @healthza's dashboard: sacoronavirus.co.za/latest-vaccine…)
3. How many #JnJ and #Pfizer doses do we have left?
By 5pm on June 28:

7, 430, 510 (all the doses we’ve received) - 2, 308, 225 (doses we’ve used) = 5, 122, 285

(Some batches are still being quality tested at the National Control Lab in Bloem)
Read 12 tweets
27 Jun
[Thread]1. For the next 14 days the following Level 4 level #lockdown measures will be in place:
1. All gatherings, both indoors and outdoors = prohibited (only funerals = allowed, no more than 50 people)
2. Beaches and parks will remain open, but no gatherings
3. Curfew = 9pm to 4am
4. Sale of alcohol, both onsite and offsite is prohibited
5. Travel in and out of provinces for leisure is prohibited (business travel is allowed)
6. Restaurants are only allowed to sell takeaways (because patrons can't wear masks while eating)
7. The winter school holidays will be brought forward: Schools will close from Wed, 30 June and all schools have to be closed by the end of this week
8. Contact classes at tertiary institutions will end on Wed
Read 4 tweets
27 Jun
[Thread] #CyrilRamaphosa: Along with other African countries SA has seen a massive resurgence of #COVID infections. The African CDC says a massive 3rd wave is developing across the continent. The Delta variant has now been detected in 5 provinces.
bit.ly/2T9wFZu
2. #CyrilRamaphosa: The Delta variant is rapidly replacing the Beta variant in SA. It has been detected in: Free State, Gauteng, KZN, Eastern Cape and Western Cape.
The variant is twice as transmissible as the original form of the virus. So it infects far more people faster.
3. #CyrilRamaphosa : There is emerging evidence that people who have been infected with the Beta variant are not protected against infection by the Delta variant. So they can get reinfected.
Read 4 tweets

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