1. THREAD: Dr.NK Arora, National Technical Advisory Group on Immunisation (NTAGI) to India: '75% OF CASES IN METROS ARE OMICRON' #Covid_19
2. 'India is clearly in the third wave of COVID.'
3. 'The whole wave seems to be driven by Omicron.''
4. 'Vaccine for boosters to be decided tomorrow or day after tomorrow.'
5. Corbevax and Covovax also being considered for use as children's vaccines
6. On booster combinations: ''... so all kinds of computation-permutations are there, because now we are facing a new kind of challenge correct.''
7. Why has Zycov D not rolled out for children despite being granted emergency use authorization?

''So this is world's first DNA vaccine. And so far the experience has been and the practice is that first evaluate the vaccine in adults ... "
8. '' ... After we are convinced of the safety of the vaccine in actual real life scenarios in adults, then only we go in for pediatric population.''
To NDTV, not India.

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More from @VishnuNDTV

5 Jan
1. SOURCES: Chopper crash of Gen Bipin Rawat was the result of Controlled Flight Into Terrain (CFIT) in cloudy weather conditions. (CFIT is defined in aviation as being caused by pilot error.) IATA definition in next tweet:
2. IATA (International Air Transport Association) - CFIT refers to accidents in which there was an in-flight collision with terrain, water, or obstacle, without indication of loss of control. (MORE)
3. IATA: The critical distinction in these types of accidents is the fact that the aircraft is under the control of the flight crew.
Read 6 tweets
2 Jan
1. THREAD: Multiple reports, with fragments of detail on the CDS chopper crash, skirt the possibility of pilot error. This report says ''CFIT [Controlled Flight into Terrain] means the helicopter was airworthy and the pilot was not at fault.'' Really?
indianexpress.com/article/india/…
2. - How exactly do you fly into terrain in a controlled manner without there being gross pilot error? Why would any pilot get into this situation at all? Its crucial for the @IAF_MCC to be transparent about what happened.
3. Aviators will tell you there is hardly ever a single cause of a crash. Crashes happen for multiple reasons - Here's what I would like to know ...
Read 8 tweets
2 Jan
1. The Vikramaditya and presumably the Vikrant are fitted with a host of very specific, closed-looping landing and navigation aids specific to the MiG-29K aircraft. This includes the LUNA optical landing system.
2. The Russian Resistor-E air-traffic control system is interfaced with the MiG-29K and provides landing and navigation to just 30 metres short of flight deck. Again, I assume this would be the basis of MiG ops on the Vikrant.
3. I don't think the elevator is a problem - there wouldn't be prospective trials if that were the case. Would be interesting to see what the load-out of a Rafale-M would be for operations on a ski-jump off Viraat.
Read 5 tweets
30 Nov 21
1. Sources tell me it will take between 4 and 6 hours at Delhi airport from Dec 1 to get results of an RT-PCR test before one is allowed to exit or take a connecting flight. They will process 400-500 PCR tests per hour. Lets do the math on what this will mean for passengers.
2. An average Europe to Delhi direct flight takes 8.5 hours. Add 2 hours at the airport prior to the flight (minimum). 6 hours at Delhi airport. 1 more hour minimum to clear customs and immigration and pick up your luggage. That's 17 hours minimum as you leave Delhi airport.
3. Add a minimum of 2.5 hours for a connecting flight through the middle-east. 19.5 hours.
Read 5 tweets
30 Nov 21
1. Lancet study on Covishield effectiveness: Vaccine effectiveness in moderate to severe disease is 81% . #COVISHIELD #COVID19
2.Lancet study on Covishield effectiveness: vaccine remained effective against moderate-to-severe COVID-19, even during a surge that was dominated by the highly transmissible delta variant of SARS-CoV-2.
3. Lancet study on Covishield effectiveness: Oveall effectiveness in fully vaccinated individuals is 63%
Read 4 tweets
29 Nov 21
1. Unless our big international airports wake up to the new norms for international arrivals from the 14+ 'at risk' nations from December 1, there will be out and out chaos at our airports as thousands line up for RT-PCR tests and wait for the result before exiting.@JM_Scindia
2. Absolutely essential for our airports to massively ramp up RT-PCR testing facilities while working to deliver results for all passengers within a specified number of hours.
3. Imagine the plight of thousands of passengers, including children in holding areas waiting for hours while potentially exposing themselves to Covid in a closed space. Many arrivals from Europe would have spent close to 9 hours already on an aircraft.
Read 5 tweets

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