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Mon Jun 22, 2020, 12:15 PM

Antibody levels in recovered COVID-19 patients decline quickly: research

This discussion thread was locked as off-topic by Omaha Steve (a host of the Latest Breaking News forum).

Source: Reuters

(Reuters) - Levels of an antibody found in recovered COVID-19 patients fell sharply in 2-3 months after infection for both symptomatic and asymptomatic patients, according to a Chinese study, raising questions about the length of any immunity against the novel coronavirus.

The research, published in Nature Medicine on June 18, highlights the risks of using COVID-19 'immunity passports' and supports the prolonged use of public health interventions such as social distancing and isolating high-risk groups, researchers said.

Read more: https://www.reuters.com/article/us-health-coronavirus-antibody-idUSKBN23T1CJ



So 90 days out you could catch it again, apparently. Not good.

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Reply Antibody levels in recovered COVID-19 patients decline quickly: research (Original post)
flying_wahini Jun 2020 OP
ffr Jun 2020 #1
Neerav B. Trivedi Jun 2020 #2
Warpy Jun 2020 #3
FreeState Jun 2020 #4
FarPoint Jun 2020 #5
Omaha Steve Jun 2020 #6

Response to flying_wahini (Original post)

Mon Jun 22, 2020, 12:19 PM

1. fYI: Duplicate LBN from earlier today.

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Response to flying_wahini (Original post)

Mon Jun 22, 2020, 12:27 PM

2. There are TWO problems with this study

 

1) It is from China, and as we have seen, we can trust NOTHING from China and what they say, and

2) Look at the sample size.....74 people. How the holy fuck can you tell me that this is even a viable study in the first place?


This is more gloom and doom that China is doing in order to control the world for its own end. Be careful

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Response to flying_wahini (Original post)

Mon Jun 22, 2020, 12:30 PM

3. Not necessarily

Our immune systems are smarter than that and while the antibodies decline once the bug is gone, the memory of how to make them persists in one type of lymphocyte.

They found the same thing in recovered MERS patients but there has been no documented symptomatic reinfection.

Some memory lasts a lifetime, while another might be discarded after a few years, which is why we often need booster vaccines from time to time. Reinfection while the memory in the cell is an active one triggers a massive production of the specific antibody, and often we don't have a clue we're fighting an infection. Even when the bug is a different strain but closely related to the original, we will have a much milder case.

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Response to Warpy (Reply #3)

Mon Jun 22, 2020, 12:59 PM

4. From the article

Sounds like they don't know how the memory in the cell will react yet.

"Jin Dong-Yan, a virology professor at the University of Hong Kong who was not part of the research group, said the study does not negate the possibility that other parts of the immune system could offer protection.

Some cells memorize how to cope with a virus when first infected and can muster effective protection if there is a second round of infection, he said. Scientists are still investigating whether this mechanism works for the new coronavirus."

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Response to Warpy (Reply #3)

Mon Jun 22, 2020, 01:09 PM

5. Exactly!!

Our healthy immune systems are amazing! We must not forget that there are millions of immune comprised individuals...they will struggle... sometimes, vaccines are ineffective for them.

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Response to flying_wahini (Original post)

Mon Jun 22, 2020, 01:11 PM

6. After a review by forum hosts....LOCKING

Dupe. See the earlier post here: https://www.democraticunderground.com/10142520534

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