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  2. The plague, fevers, tularemia: The diseases fleas can carry ...

    www.aol.com/plague-fevers-tularemia-diseases...

    There are more than 2,000 species of tiny (0.04 to 0.15 inches), wingless, blood-sucking fleas that live on the body of the host they infest. Although fleas cannot fly, they have developed ...

  3. Zoonotic origins of COVID-19 - Wikipedia

    en.wikipedia.org/wiki/Zoonotic_origins_of_COVID-19

    Previous emergence of SARS-CoV-1 and MERS-CoV showed that Betacoronaviruses represent a risk for emergence of diseases threatening to humans. [ 3 ] [ 4 ] Increased awareness due to the 2002–2004 SARS outbreak motivated research into the potential for other coronavirus outbreaks and the animal reservoirs which could lead to them. [ 5 ]

  4. COVID-19 pandemic in California - Wikipedia

    en.wikipedia.org/.../COVID-19_pandemic_in_California

    Ten of the first 20 confirmed COVID-19 infections in the United States were detected in California, and the first infection was confirmed on January 26, 2020. [ 6 ] [ 7 ] [ 8 ] All of the early confirmed cases were persons who had recently travelled to China, as testing was restricted to this group, but there were some other people infected by ...

  5. Coronavirus diseases - Wikipedia

    en.wikipedia.org/wiki/Coronavirus_diseases

    In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly rhinoviruses), [1] [2] while more lethal varieties can cause SARS, MERS and COVID-19. [3] [4] As of 2021, 45 species ...

  6. Super contagious, able to reinfect: California faces big ...

    www.aol.com/news/why-ba-4-ba-5-165046826.html

    The combination of initial and recurring infectivity carries enormous implications for how the pandemic will continue to play out.

  7. 'Playing COVID roulette': Some infected by FLiRT variants ...

    www.aol.com/news/playing-covid-roulette-infected...

    The rate at which coronavirus tests are coming back with positive results continues to climb across California. For the week ending July 1, 10.6% of coronavirus tests statewide came back positive ...

  8. Human flea - Wikipedia

    en.wikipedia.org/wiki/Human_flea

    Plague, a disease that affects humans and other mammals, is caused by the bacterium Yersinia pestis. The human flea can be a carrier of the plague bacterium, although it is an exceptionally very poor vector of transmission. [4] Plague is infamous for killing millions of people in Eurasia during the Middle Ages. Without prompt treatment, the ...

  9. California hits 'very high' COVID levels as virus in ... - AOL

    www.aol.com/news/california-hits-very-high-covid...

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