All articles starting with V

Vaccine

A vaccine is a biological preparation that trains the immune system to recognize and fight a pathogen without causing disease, delivering an antigen or genetic blueprint.

Vaccine diplomacy, also called vaccine science diplomacy, is the use of vaccine delivery or joint vaccine development in foreign policy, from Jenner's smallpox outreach to COVID-19 competition among China, Russia, India, and the US.

Vaccine hesitancy

Vaccine hesitancy: delay or refusal of safe vaccines despite available services (WHO definition). Also the 3Cs model, top-10 WHO 2019 threat, and evidence on communication interventions and global DTP coverage.

Vaccine manufacturing

Vaccine manufacturing is the industrial production of vaccines, from growing and purifying the antigen to formulation, filling, and regulatory lot release, using egg-based, cell-culture, or recombinant platforms.

Oct 15, 2026

Vaccine Research Center

The Vaccine Research Center, formally the Dale and Betty Bumpers Vaccine Research Center, is an NIH center in Bethesda, Maryland, established in 1997 to develop vaccines against infectious diseases.

Vaccine Revolt

The Vaccine Revolt (Portuguese: Revolta da Vacina), also known as Quebra-Lampiões, was a popular uprising in Rio de Janeiro in November 1904 against a law making smallpox vaccination compulsory.

Vaccine shedding

Vaccine shedding is release of live attenuated vaccine virus from a vaccinated person, documented with oral polio, intranasal influenza, and rotavirus vaccines; mRNA COVID-19 vaccines contain no live virus and cannot shed.

Sep 29, 2026

Vaccine therapy

Vaccine therapy is the use of vaccines to treat an established disease, chiefly cancer, by stimulating the immune system against tumor antigens; approved examples include sipuleucel-T and T-VEC.

Vaccine-induced immune thrombotic thrombocytopenia

Vaccine-induced immune thrombotic thrombocytopenia (VITT, or TTS) is a rare anti-PF4 antibody disorder causing thrombosis with thrombocytopenia 5-30 days after adenoviral vector COVID-19 vaccines such as AstraZeneca and Janssen.

Vaccines and autism

Vaccines and autism: the disproven claim, from Wakefield's retracted 1998 Lancet paper, that MMR or thimerosal vaccines cause autism; IOM, WHO, and meta-analyses of over 1.3 million children find no association.

Vaccines COVID study

Vaccines COVID study (NCT06597370), an observational patient registry by Mexico's National Polytechnic Institute measuring anti-spike IgG mRNA expression in 80 Mexican adults vaccinated with ChAdOx1, Sputnik V, BNT162b2, or CoronaVac; completed December 2021, no results posted.

Vaccinites

Vaccinites (Fischer, 1887) is a genus of Late Cretaceous hippuritid rudist bivalves from Turonian to Maastrichtian carbonate platforms of Tethys and the Americas; V. cornuvaccinum marks the Coniacian and lineages show size increase.

Vaccinium

Vaccinium L. is a cosmopolitan genus of about 450–500 berry-bearing shrubs in Ericaceae, tribe Vaccinieae, including blueberry, cranberry, and lingonberry; type species V. uliginosum, known to be polyphyletic.

Vaccinium angustifolium

Vaccinium angustifolium, the lowbush or wild blueberry, is a tetraploid Ericaceae subshrub native to eastern North America, harvested from managed wild stands in Maine and Atlantic Canada on a two-year prune-crop cycle, with higher anthocyanins than highbush blueberry.

Vaccinium corymbosum

Vaccinium corymbosum, highbush blueberry (northern highbush), is a tetraploid Ericaceae shrub native to eastern North America, domesticated from 1908 by Coville and Elizabeth White at Whitesbog, New Jersey; it supplies about 90% of northern highbush cultivar ancestry and, crossed with V. darrowii, the southern highbush group.

Vaccinium macrocarpon

Vaccinium macrocarpon, American or large cranberry, Oxycoccus macrocarpus, a diploid Ericaceae vine native to eastern North American bogs, domesticated from 1810, USDA breeding from 1929, Wisconsin grows about 60 percent of the U.S. crop.

Vaccinium myrtillus

Vaccinium myrtillus, bilberry or European blueberry, is a wild Ericaceae subshrub of Eurasia and North America with anthocyanin-rich berries; rigorous trials do not support its night-vision and most supplement health claims.

Vaccinium vitis-idaea

Vaccinium vitis-idaea, lingonberry or cowberry, a circumpolar evergreen Ericaceae subshrub 5-15 cm tall with red 8-10 mm tart berries; two subspecies, ssp. minus in North America, ssp. vitis-idaea in Eurasia; IUCN least concern.

Vacha

Vacha was a Marathi little magazine edited by Bhalchandra Nemade, published from Aurangabad in 1967 and 1968 with a deliberate circulation of five hundred copies a month.

Vachagan III the Pious

Vachagan III the Pious (Vachagan Barepasht) was king of Caucasian Albania from 485 to 510 who re-established Christianity and convened the Council of Aluen, the first national council of the Albanian Church.

Sep 23, 2026

Vachana literature

Vachana literature (ವಚನ ಸಾಹಿತ್ಯ) is a corpus of short Kannada devotional prose-poems written from the eleventh century onward by Virashaiva (Lingayat) poets, above all Basavanna, Allama Prabhu, and Akka Mahadevi.

Vachanamrut

The Vachanamrut, the principal scripture of the Swaminarayan Sampraday, compiles 273 spiritual discourses delivered by Bhagwan Swaminarayan between 1819 and 1829, regarded as the first prose scripture of Gujarati.

Vachellia

Vachellia is a pantropical genus of about 164 species of spiny trees and shrubs in the legume family, holding most former Acacia species outside Australia.

Vachellia nilotica

Vachellia nilotica, also called babul, prickly acacia, or Egyptian acacia (formerly Acacia nilotica), is a leguminous African-Asian tree used for medicine, gum, fodder, and tanning; its subspecies indica is a Weed of National Significance in Australia.