@ProfAbdoolKarim: 1. If cases continue 2 decline @ the current rate, the wave will end in +/- 10-11 days 2. How will we know it's the end? @nicd_sa uses 30 cases/100,000 in the past 7 days for the beginning/end of a wave
2. If the #Omicron wave does end in +/-10-11 days, it will have been just over half the length of previous waves: 1. Wave 1, 2, 3: About 75 days long 2. Wave 4 (Omicron) likely to be 40-50 days long
3. Can SA expect a next #COVID19 wave? @ProfAbdoolKarim: 1. Given the consistent 3 month gap we get in SA between waves, the 5th wave can be expected, if it is going to occur, in May this year 2. Of course, a new variant may throw this estimation out the window
2. Why did study authors look @ Gauteng + not the entire SA? 1. SA's #Omicron outbreak started in Gauteng, so there's data 4 a longer period than other provinces 2. They looked @ the 1st 4 weeks of #Omicron + compared it to the same periods for Wave 2 (Beta), Wave 3 (#Delta)
3. From when to when were the 1 month periods of the waves?
- Wave 2 (Beta): 29 Nov-26 Dec 2020
- Wave 3 (#Delta): 2 May-29 May 2021
- Wave 4 (#Omicron): 14 Nov-11 Dec 2021
It’s when health workers try to trace the people 1 infected person could potentially have infected by asking the infected person who they have been in contact with and getting those people to then test or isolate if they test positive.
In short: It’s too expensive for what we get out of it, so we spend a lot of money 4 very little gain (gain = picking up infected people + stopping them from infecting others). We could use the money better on other stuff/diseases.
JUST IN [Thread]: 1. @HealthZA disagrees with the US government's CDC's decision to recommend #mRNA jabs above #JnJ (because of rare side effects) - we'll continue using JnJ 2. The US = abundance of jabs (100 mil + ready for use), so they can afford 2 be choosy.
2. How safe is #JnJ? 1. @MRCza analysed safety data from the #Sisonke study (which uses #JnJ) 2. Serious side effects were rare and occurred in only 129 out of about 500 000 #HealthWorkers in the study
3. What does #Sisonke data tell us about mild #JnJ side effects? 1. The commonest side effects = headache, body aches, pain @ injection site, fever 2. Most side effects = occurred within 48 hours of vaccination