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M113A2 AMB - Armoured Ambulance variant of the M113A2 series, these vehicles are unarmed but are fitted with storage baskets mounted on the side of the hull along the length of the troop bay. [34] [35] [36] M163A2 PIVADS (M163 Series) - Air Defence variant of the M113 series used by both the Air Force and the Army.
Independently, Western researchers carried out similar analyses but labeled the ancestral type "A" and the derived type "B". The B-type mutated into further types including B.1, which is the ancestor of the major global variants of concern, labeled in 2021 by the WHO as alpha, beta, gamma, delta and omicron variants. [8] [9] [10]
Command variant, the roof over the rear troop compartment is higher. The vehicle also carries additional radios and a generator. A variant of this is the M1068 standard integrated command post system carrier, equipped with the newest U.S. Army automated command and control system. M579. A fitter and repair vehicle equipped with a crane.
Scientists remain focused on Delta, now the dominant variant rising rapidly around the world, but are tracking others to see what may one day take its place. It is striking unvaccinated ...
On 26 November at an emergency meeting in Geneva, Switzerland WHO's Technical Advisory Group on SARS-CoV-2 Virus Evolution designated PANGO lineage B.1.1.529 a variant of concern (VOC) and gave it the designation Omicron (skipping Nu and Xi, the next letters in the Greek alphabet in keeping with its nomenclature protocol introduced for the Delta variant).
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As of 6 January 2022, Omicron multiplied around 70 times faster than the Delta variant in the bronchi (lung airways) but evidence suggested it is less severe than previous variants, especially compared to Delta, [283] [240] since it might be less able to penetrate deep lung tissue. [284]
The global health watchdog on Tuesday promoted JN.1—an Omicron spawn experts flagged this summer for its unusually large number of mutations—to a “variant of interest.” It’s second only ...