There is insufficient evidence to determine whether larvivorous fish can decrease mosquito density and transmission in the area. Medications
There are a number of medications that can help prevent or interrupt malaria in travellers to places where infection is common. Many of these medications are also used in treatment. In places where Plasmodium is resistant to one or more medications, three medications—mefloquine, doxycycline, or the combination of atovaquone/proguanil (Malarone)—are frequently used for prevention. Doxycycline and the atovaquone/proguanil are better tolerated while mefloquine is taken once a week. Areas of the world with chloroquine-sensitive malaria are uncommon. Antimalarial mass drug administration to an entire population at the same time may reduce the risk of contracting malaria in the population, however the effectiveness of mass drug administration may vary depending on the prevalence of malaria in the area. Other factors such as drug administration plus other protective measures such as mosiquito control, the proportion of people treated in the area, and the risk of reinfection with malaria may play a role in the effectiveness of mass drug treatment approaches.The protective effect does not begin immediately, and people visiting areas where malaria exists usually start taking the drugs one to two weeks before they arrive, and continue taking them for four weeks after leaving (except for atovaquone/proguanil, which only needs to be started two days before and continued for seven days afterward).
Elsewhere may refer to:

Film
Elsewhere (2001 film), a 2001 Austrian documentary by Nikolaus Geyrhalter
Elsewhere (2009 film), an American thriller starring Anna Kendrick
Elsewhere (2019 film), an American comedy-drama directed by Hernán Jiménez

Literature
Elsewhere, a 1991 novel by Will Shetterly
Elsewhere (anthology), a 2003 Australian speculative-fiction anthology
Elsewhere (Blatty novel), a 2009 novel by William Peter Blatty
"Elsewhere" (short story), a 1941 science-fiction short story by Robert Heinlein
Elsewhere (Zevin novel), a 2005 novel by Gabrielle Zevin
Elsewhere: A Memoir, a 2012 memoir by novelist Richard Russo

Music
Elsewhere, an EP by Gretta Ray, 2016
Elsewhere (Scott Matthews album)
Elsewhere (Joe Morris album)
Elsewhere (Pinegrove album), 2017
"Elsewhere", a song by Sarah McLachlan from Fumbling Towards Ecstasy

Places
Elsewhere, a museum and artist residency in Greensboro, North Carolina
The name of a town in Calloway County, Kentucky
Elsewhere (music venue), music venue in Bushwick, Brooklyn

Other
Elsewhere (website), a music, arts and travel website run by New Zealand journalist Graham Reid
Elsewhere, the stage name of dancer David Bernal
In special relativity, the region of spacetime outside a light cone
Elsweyr, a fictional nation in the Elder Scrolls videogame series

See also
St. Elsewhere, an American television drama series
St. Elsewhere (album), a 2006 album by Gnarls Barkley
Dispatches from Elsewhere, a 2020 American television drama series
Somewhere Else (disambiguation)