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  2. Sickle cell disease - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_disease

    A person with a single abnormal copy does not usually have symptoms and is said to have sickle cell trait. [3] Such people are also referred to as carriers. [5] Diagnosis is by a blood test, and some countries test all babies at birth for the disease. [4] Diagnosis is also possible during pregnancy. [4]

  3. Sickle cell trait - Wikipedia

    en.wikipedia.org/wiki/Sickle_cell_trait

    The significance of the sickle-cell trait is that it does not show any symptoms, nor does it cause any major difference in blood cell count. The trait confers about 30% protection against malaria [ clarification needed ] and its occurrence appears to have risen tremendously in Africa , India and the Middle East.

  4. Omicron symptoms: What we know about illness caused by ... - AOL

    www.aol.com/omicron-symptoms-know-illness-caused...

    Omicron variant symptoms may be different than previous Covid strains. Learn what you should know about Omicron symptoms and what to look out for. Omicron symptoms: What we know about illness ...

  5. A guide to help you keep track of all the Omicron subvariants

    www.aol.com/news/guide-help-keep-track-omicron...

    Even the most recent subvariants that have been discovered, BA.4 and BA.5, show “no evidence to suggest that it is more worrisome than the original Omicron, other than a potentially slight ...

  6. Omicron may cause milder symptoms. But experts aren’t ... - AOL

    www.aol.com/omicron-may-cause-milder-symptoms...

    Epidemiologists said their big concern is how quickly omicron, with its high number of mutations, might spread and how it will match up against vaccines. Omicron may cause milder symptoms. But ...

  7. Heterozygote advantage - Wikipedia

    en.wikipedia.org/wiki/Heterozygote_advantage

    In carriers, this drop is sufficient to trigger the full sickle-cell reaction, which leads to infected cells being rapidly removed from circulation and strongly limiting the infection's progress. These individuals have a great resistance to infection and have a greater chance of surviving outbreaks.

  8. BA.2.86 - Wikipedia

    en.wikipedia.org/wiki/BA.2.86

    Initial lab results from China and Sweden indicate that the variant is neither as contagious nor immune-evasive as some scientists had feared, and is no longer regarded as "the second coming of Omicron". Two studies published in Cell suggest, that while BA.2.86 has reported to have been less contagious, it may lead to more severe disease by ...

  9. The most common Omicron symptoms include cough, fatigue, and ...

    www.aol.com/news/most-common-omicron-symptoms...

    One of the 43 Omicron patients identified in the US was hospitalized, and the person was discharged after two days, a CDC report said.