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Zika fever (also known as Zika virus disease) is an illness caused by Zika virus. [79] Around 80% of cases are estimated to be asymptomatic, though the accuracy of this figure is hindered by the wide variance in data quality, and figures from different outbreaks can vary significantly. [ 80 ]
Spread of the Zika virus [1] [2] [3]. This article primarily covers the chronology of the 2015–16 Zika virus epidemic.Flag icons denote the first announcements of confirmed cases by the respective nation-states, their first deaths (and other events such as their first reported cases of microcephaly and major public health announcements), and relevant sessions and announcements of the World ...
Though Zika virus has been shown to infect human Schwann cells. [23] Several countries affected by Zika outbreaks have reported increases in the rate of new cases of GBS. During the 2013–2014 outbreak in French Polynesia there were 42 reported cases of GBS over three months, compared to between 3 and 10 annually before the outbreak. [24]
It is estimated that 1.5 million people were infected by Zika virus in Brazil, [3] with over 3,500 cases of infant microcephaly reported between October 2015 and January 2016. [4] The epidemic also affected other parts of South and North America, as well as several islands in the Pacific. [5] Zika virus spread to Brazil from Oceania in 2013 or ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
Such a standing report section is the "Notifiable Diseases and Mortality Tables", which reports deaths by disease and state, and city for city, for 122 large cities. As another example, there are more than a hundred items about West Nile virus infections since the 1999 outbreak of the disease in the US. In 2001–2005, there were weekly updates ...
Zika, a virus known to cause the birth defect microcephaly, first began spreading in Puerto Rico in December.
The health departments then report their findings through NORS, where the data is aggregated and analyzed by the CDC. [1] Detailed information on how to use NORS is available on the CDC website. These training materials explain the process for creating reports, uploading laboratory and outbreak data, and addressing entry issues. [5]