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What do waning COVID-19 antibodies tell us about immunity and vaccines?
Growing evidence that COVID-19 antibody levels can wane swiftly after someone is infected is not necessarily bad news for immunity, experts said, and does not mean protection offered by coronavirus vaccines will be weak or short-lived.
COVID-19 reinfection casts doubt on virus immunity: Study
COVID-19 patients may experience more severe symptoms the second time they are infected, according to research released Tuesday confirming it is possible to catch the potentially deadly disease more than once.
Do masks help boost COVID immunity?
Could the mask — already seen by many scientists as the most effective shield against COVID-19 — have yet another benefit? Some researchers now believe that they expose wearers to smaller, less harmful doses of the disease which spark an immune response.
This one vegetable is key for boosting your immunity
Eating more whole foods and plants is a great way to get more nutrients into the diet that can help prevent disease. But no two vegetables and fruits are the same — in flavor, texture, and vitamins and minerals. There is one vegetable that is particularly good at boosting the immune system — shiitake mushrooms!
WHO: 'We are nowhere close' to having the herd immunity needed to stop the coronavirus
Recent reports have suggested that herd immunity may be achieved when as little as 50 percent of the population is immune. Herd immunity occurs when enough of the population is immune to the coronavirus, either via exposure or vaccine, for transmission to wane.
Why do we develop lifelong immunity to some diseases, but not others?
Some diseases, like the measles, infect us once and usually grant us immunity for life. For others, like the flu, we have to get vaccinated year after year.
Common cold could boost COVID-19 immunity, study finds
The common cold might help produce immunity against COVID-19, even in people who have not been infected with the new coronavirus, according to a study published by the journal Science.
Deputy minister: Herd immunity policy not effective for coronavirus
Iran’s Deputy Health Minister Iraj Harirchi said on Monday that adopting the policy of herd immunity in the case of the coronavirus is not effective.
Excess dietary salt may weaken  immunity against bacteria in kidneys
Eating more than the recommended amount of salt disrupts the antibacterial function of a type of immune cell, research in mice and humans has found.
HIV patients lose immunity to smallpox despite vaccination, AIDS drugs: Study
People infected with the Human Immunodeficiency Virus (HIV) lose immunity to smallpox even after much of their immune system is restored with drug therapy, according to a study which may lead to new interventions against opportunistic infections in HIV patients.
UK police ask US to waive immunity for envoy's wife in crash
A chief constable in the UK wrote to the US Embassy in London demanding the return of an American diplomat's wife who is a suspect in a fatal crash inquiry.
Venezuela’s Guaido stripped of immunity, cleared for prosecution
Venezuela’s opposition figure Juan Guaido has been stripped of his parliamentary immunity, in a move that paves the way for the government to arrest and prosecute him for declaring himself “interim president” of the country even though an elected government is in place.
Top Venezuela court urges revocation of Guaido’s immunity
Venezuela’s Supreme Court has urged the National Constituent Assembly to strip opposition figure Juan Guaido of his parliamentary immunity from prosecution.
Bottling up your emotions can affect your immunity: Study
Teenagers who suppressed emotions tended to have more inflammation when their immune cells were exposed to a bacterial stimulus in the lab, even in the presence of anti-inflammatory signals.
Diplomat arrested in Germany enjoys full immunity: Iran
Iran's Foreign Ministry spokesman says an Iranian diplomat, who was arrested in Germany on the false charges of being linked to a bomb attack plot in the French capital, Paris, enjoys full diplomatic immunity.

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