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In surveyed areas of Península Valdés, Argentina, seal mortality rates reached 96%. [7] In February 2024 it was estimated that the outbreak of H5N1 in South America had killed at least 600,000 wild birds and 50,000 mammals since 2022.
H5N1 influenza virus is a type of influenza A virus which mostly infects birds. H5N1 flu is a concern because its global spread may constitute a pandemic threat. The yardstick for human mortality from H5N1 is the case-fatality rate (CFR); the ratio of the number of confirmed human deaths resulting from infection of H5N1 to the number of those confirmed cases of infection with the virus.
Due to the increasing human use of coastal waters, Parish envisioned a program that could provide data on both resident and migrant species of birds; mortality rates after oil spills; levels of chronic oiling, information regarding some incidents of entanglement with fishing gear; and causes of death for seabird populations. Since a live bird ...
An Alaska seabird species faced the worst mortality event in modern history, and the population isn’t recovering, a study finds. Experts discuss the future implications.
Some birds and some lizards follow this pattern. Type III or concave curves have the greatest mortality (lowest age-specific survival) early in life, with relatively low rates of death (high probability of survival) for those surviving this bottleneck. This type of curve is characteristic of species that produce a large number of offspring ...
While the mortality rate was 0.6 per cent for Covid-19, Redfield said the mortality for the bird flu would probably be “somewhere between 25 and 50 per cent.”
This is a list of U.S. states, the District of Columbia and territories by infant mortality rates in 2021. The infant mortality rate is the number of deaths of infants under one year old per 1,000 live births. This rate is often used as an indicator of the level of health in a country. The child mortality rate is the number of deaths of infants ...
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