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Coronavirus COVID-19
Join the discussions relating to the Corona Virus and help fight medical misinformation. The 2019–20 coronavirus outbreak is an ongoing outbreak of coronavirus disease 2019 caused by SARS-CoV-2, which started in December 2019. It was first identified in Wuhan, capital of Hubei province China. Join us in discussions relating to the virus, how we can stay safe and how to avoid fake news or misinformation.
Coronavirus COVID-19
Discussions relating to the Corona Virus Disease 2019. Help our community spread awareness, education and debunk fake news or misinformation about the 2019 Coronavirus outbreak that started in Wuhan
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  2. Dear @Kelvin_tan Kindly note that he is advised to take his covid-19 vaccination at least 2 weeks after his influenza and pneumococcal vaccine today. Hope this helps you in scheduling his vaccination appt.
    Dr. Yan Y T
    Space Doctor
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  4. Dear @nomanmarsuni Your mother belongs to the high risk group as she is elderly and has chronic conditions like diabetes. She will have poorer outcome in the unfortunate event if she contracts covid-19. 

    It is recommended that she undergoes the covid-19 vaccination. However the vaccination center will definitely check on her medical and medication history thoroughly to ensure that she is suitable for vaccination before proceeding. You may wish to proceed to book her Covid-19 vaccination. 

    Please be reminded to press on her vaccination site longer as she is on blood thinners, to prevent a big bruise on the injection site. Hope this helps.
    Dr. Yan Y T
    Space Doctor
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  6. Dear @srmoore. You should seek medical attention if you are tested positive for COVID-19 and follow the prevailing medical advice by your country's COVID healthcare management team. This might vary from country to country. I would recommend you seek emergency attention if you have any shortness of breath, persistent fever that does not go away with anti-pyretics such as paracetamol or generally unwell. Do get well soon.
    Dr. Yan Y T
    Space Doctor
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  10. Hi @demarcus thats an interesting question, and yes - infection/inflammation in the nasal passage can irritate the nerves in the area leading to activation of the sneezing reflex. Inflammation is mediated in part by the release of histamines, which can occur with mast cell activation. As you said, the histamine then triggers the release of other downstream inflammatory chemicals which together lead to vasodilation (increased blood flow) and immune/white blood cells in the blood stream being activated to the area.

    If you're still curious to find out more about mast cells and histamine, heres a resource with more information:  
    https://www.frontiersin.org/articles/10.3389/fimmu.2015.00620/full#:~:text=In%20the%20skin%2C%20antigens%2C%20via,this%20can%20lead%20to%20angioedema.
    Dr. Dinesh G
    Space Doctor
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  12. Dear Wenda, a person's baseline body temperature may fluctuate quite a bit, depending on time of day, activity level, where the temperature was taken and the type of thermomter used!  However, T 38 is a fever, and there are so many causes: maybe viral, bacterial infections, or even some forms of cancer. 

    I would strongly advise that someone with a fever (especially now with Covid-19), to please check for the nearest PHPC clinic, and call ahead to make an appointment. The attending doctor will need to assess, take a history, do a physical examination, and then advise accordingly. 
    Stay well!

    https://www.gov.sg/article/i-am-showing-respiratory-symptoms-where-should-i-go

    https://www.flugowhere.gov.sg/
    Dr. Tan Y S .
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  14. Hi @palmer , thank you for your question!

    This is definitely one of the more recent debates regarding COVID. Unfortunately there isn't enough information available for us to definitively say that the infections in Beijing are a result of salmon imports. It is largely a possibility. As stated in the article, the virus itself was found on chopping boards in the market which, in all honesty, could have come from the population itself. Once more information is available then we can probably get a better idea of safety. 

    The virus itself has not shown definitive cross species infection to fish thus far so I would say it is unlikely that it would spread from humans to fish and then back to humans. 

    If you're really worried, then I would advise just to stay away from Salmon imported from Europe. 

    Hope this helps!
    Dr. Adnaan S
    Space Doctor
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  16. Hi @Fiqah thats an interesting question! However, no medications (including antiretrovirals) have been proven in clinical studies to prevent (as relevant to your question) nor treat the COVID-19  virus to date. In fact, patients with HIV can have impaired immune systems, and may be at increased risk of poorer outcomes if they catch the infection.
    Dr. Dinesh G
    Space Doctor
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  18. Good evening @BusinessJing this is not true. Although it may appear that the virus has varied lethality based on differing reports of patients (e.g. those from the west versus those in China/other parts of Asia), this may largely be due to the varying quality of operational responses (like contact tracing/ lockdowns) and healthcare systems (as what you alluded to). There has been no evidence to confirm new strains yet.

    The confusion is due to the different terminology for a new "strain" versus a new "isolate" (sample from a person). For a new strain to be confirmed, genetic tests and other laboratory reports of the virus itself are also required (aside from reports of patient outcomes). These will take some time given that it is a new infection. 

    Although some reports have emerged that suggest different "strains", these actually refer to different "isolates" that have minor genetic variations with no confirmed change in the nature/properties of the virus. These are expected  variations, that can be seen with different "isolates" of a given virus that are taken from people that are spread across time and space. This can happen with viruses that "reproduce" by a method called RNA synthesis which sometimes makes these errors in their genetic code.

    Whether or not these genetic variations confer new biological properties to the virus is what usually determines whether it should be labelled as a new "strain". Examples of these properties include new surface binding proteins that make it more lethal/contagious (which would justify it being termed a new "strain"). This requires more work to be confirmed (e.g. to differentiate phenomena such as "founder effect" from true selective pressure), and there is no conclusive evidence of new "strains" to date.
    Dr. Dinesh G
    Space Doctor