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Vincent Rajkumar Profile picture
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24 Apr, 6 tweets, 2 min read
This is a plea to the US government to help India. What you can do:

-Help with Oxygen & Oxygen generators
-Release Astra Zeneca vaccine supplies
-Lift the export ban & send them raw materials for vaccines

As bad as this looks. It's 10 times worse. The Indian people need you.
This is not only the right thing to do. It is also wise. If this absolutely stunning and dramatic spike is due to a bad COVID variant, then it is going to affect us.

It will be self defeating to crush COVID only to let a bad COVID variant get us again.

Please act urgently.
It is not everyday that a request like this goes out. On April 16 new cases were 180,000 per day.

It is a week since this request. It is now 300,000 new cases per day. Urgent will be an understatement. @adarpoonawalla
Very encouraging response from @SecBlinken

Thanks. I am hopeful. So are a billion people.
More here. Stay tuned.
Truly grateful on behalf of a billion people.

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Vincent Rajkumar Profile picture
24 Apr
Studies were reporting 40-50% seroprevalence in big cities in India even by December. The same cities (eg. Delhi, Mumbai, Chennai) are now totally overwhelmed with COVID.

What does this mean? How could this even happen? nature.com/articles/d4158…

@SmritiMallapaty @nature
First, sampling in big cities could have been wrong and didn't estimate the true seroprevalence accurately even within each city, let alone India.
Second, even if 50% seroprevalence was true, that still leaves 50%.

50% of India still means 650 million people susceptible. Twice the size of the US population.
Read 7 tweets
Vincent Rajkumar Profile picture
23 Apr
Updated Risk of vaccine related cerebral venous sinus (or splanchnic vein) thrombosis associated with low platelets

Astra Zeneca
1 in 100,000 (EU)
1 in 250,000 (UK)

J&J
1 in 500,000 overall.
1 in 150,000 for women age 18-49.

No risk seen with Moderna or Pfizer vaccines.
The risks are extremely low. Awaiting CDC panel recommendations on J&J pause.
The pause was justified. To determine the numerator & the denominator. CDC panel has voted today to resume vaccinations with the J&J vaccine. statnews.com/2021/04/23/cdc…
Read 6 tweets
Vincent Rajkumar Profile picture
22 Apr
One year had gone by. We thought that given India's population and crowding, that the number and severity of COVID was inexplicably low.

Well that part was true. But not because of a miracle or massive undercounting. It was sadly because the worst was yet to come. A crisis.
Either lockdowns and restrictions had worked really well, and once everything broke free after November, COVID did what it does.

Or

New dangerous mutants evolved.

Or

Both happened together.

End Result: The present crisis.

@lfrayer npr.org/sections/goats…
In this time of crisis & desperation, 2 problems must be dealt with simultaneously.

1) Care of patients with COVID in a sensible way that optimizes the use of scarce resources & minimizes loss of life

2) Reduce new cases by masking, distancing, & rapid vaccination
Read 7 tweets
Vincent Rajkumar Profile picture
21 Apr
I was wrong in my assessment. Two months ago, I felt India had somehow miraculously escaped the devastation caused by the pandemic in so many countries. COVID has humbled me, again.
No easy solutions for India except masks, distancing, and rapid vaccination. It is a crisis. ImageImageImageImage
I still hope that one of the main points of my earlier thread that preexisting immunity (in addition to lower age and less obesity) will keep the mortality rate significantly lower is correct.

But with such a huge population, even a tiny mortality rate is millions of lives.
We thought 40% seroprevalence meant inching to herd immunity. No.

The 1.3 billion population means that 750 million people are still potentially susceptible and don't have immunity against COVID.
Read 7 tweets
Vincent Rajkumar Profile picture
21 Apr
Important: The rate of blood clots with low platelets reported with Pfizer and Moderna are LOWER than expected for general population. These vaccines are safe and don't carry excess risk.
Clots with low platelets can occur with many hematologic conditions including HIT, HUS, TTP, Atypical TTP, Antiphospholipid antibody syndrome, etc.

The rates with Pfizer and Moderna are lower than what is expected for TTP in the general population.
We have vaccinated >120 million people with Pfizer and Moderna in the US. Compared to 7 million with J&J.

8 unusual clots with low platelets reported with J&J. If this was a problem with the other two vaccines, we would have known by now.
Read 5 tweets
Vincent Rajkumar Profile picture
20 Apr
A high viral dose exposure, a bad mutant variant, or an immune system compromised by prior illness or chemotherapy — are 3 potential reasons why COVID reinfection or post-vaccine infection may occur.
Lowering viral dose exposure can be achieved by masks, distancing, ventilation. I think it's a good idea to follow these measures until the pandemic is under control in your country, even if you have had prior COVID and are vaccinated. Helps you. And helps reduce spread to others
Immune system thats compromised by prior illness or chemotherapy can be helped by ongoing research on vaccine boosters. As well as improved treatments. But note that no matter how immunosuppressed, whatever protection we get from vaccines is definitely better than nothing.
Read 4 tweets

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