Exact(1)
However, absolute freedom from infection cannot be documented, since all test protocols are imperfect and can lead to false-negative results.
Similar(59)
Local transmission has been documented since 1955 in people, and since 1972 in dogs.
It has been documented since at least 1572.
The Chilean empanada habit came from Spain, where empanadas have been documented since the 13th century.
Hybridization of native blight resistant hazel trees to the European hazel in North America has been documented since 1921 by Carl Weschcke.
THE use of lubricants to reduce friction and wear between rubbing surfaces has been documented since antiquity1 3.
Perfective done is a characteristic feature of African American (Vernacular) English (AAE), as has been documented since at least the 1970s Labov 19722, Schneider 1983, Green 2002, among others).
Although sporadic outbreaks of viruses such as Ebola that cause hemorrhagic fevers in humans have been documented since the late 1960s, the largest epidemic in history struck just three years ago.
In fact, repeated Jewish migrations that might have carried R1a-Y2619 Y chromosomes to Catalonia are documented since the 4th century and during the Muslim expansion to Iberia31.
Pressure recovery-related differences are usually small except in patients with bileaflet metallic prosthesis, wherein high-pressure local jets across central orifice have been documented since long back and also in patients with narrow aortic root.
A lava lake has been documented since the twentieth century at the summit of the Erta Ale volcano and acts as an indicator of the pressure of its magma reservoir.
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