Fight The Bite: Community Presentation: Mosquitoes And West Nile Virus
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Fight The Bite: Community Presentation: Mosquitoes And West Nile Virus as PDF for free.
More details
- Words: 475
- Pages: 34
FIGHT THE BITE Community Presentation: Mosquitoes and West Nile virus
Presentation Developed By: Sacramento-Yolo Mosquito & Vector Control District
What Are Mosquitoes? A mosquito is a two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals.
Mosquito Life Cycle
egg
larva
pupa
adult
What Do Females Do That Males Don’t? Only female mosquitoes bite and feed on humans and animals.
Why Do Females Bite? Female mosquitoes need to feed on humans or animals, such as birds and horses before they can develop eggs.
Laying eggs
They suck blood through their proboscis.
Proboscis (A)
Where Do Mosquitoes Grow? Mosquitoes lay their eggs in standing water.
What Diseases Can Mosquitoes Carry? West Nile Virus Dog Heartworm Western Equine Encephalomyelitis
What Is West Nile Virus? West Nile Virus (WNV) is a mosquitoborne virus that can cause disease in humans, birds, horses, domestic and wild animals.
Where Did It Come From? The WNV virus was first isolated in the West Nile district, Northern Province, Uganda in 1937.
When Did It Arrive In The United States?
WNV was first detected in the United States during 1999.
Where Did It Travel?
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009 as of July 27
th
Is WNV Dangerous? West Nile Virus is now the most prevalent mosquito-borne disease in the United States.
How does it happen?
The cycle begins when an uninfected female mosquito bites an infected bird during the period (1 to 5 days) that the virus is circulated in the blood.
Will I Be Infected? 20% West Nile Fever 80% Asymptomatic
The majority of infected individuals fail to produce a full set of signs and symptoms. This is referred to as an inapparent infection.
How Long Do Symptoms Last? These symptoms can last two to three weeks with an uneventful recovery or the disease progressing to involve the central nervous system (CNS) resulting in severe disease in roughly 1% of cases: – West Nile Meningitis – West Nile Encephalitis – West Nile Poliomyelitis
Are You At Risk? * Mosquito exposure – Increased exposure = Increased risk
* Personal characteristics – Age, health, high blood pressure, etc…
How Does The District Control Mosquitoes? Integrated Pest Management: – Public Education – Surveillance – Biological Control – Physical Control – Chemical Control
Public Education
Surveillance
Biological Control
Physical Control
Chemical Control
What Can You Do? Follow the District D’s of Prevention DRAIN Standing Water DAWN and DUSK Are Times To Avoid Being
Outdoors DRESS In Long Sleeves & Pants When Outside DEFEND Yourself With An Effective Repellent DOORS and Screens Should Be In Good Working Condition DISTRICT Personnel Are Available To Help
What Else Can I Do? • Report neglected pools – Or other service requests
Educate my community – Tell my neighbors
Sacramento-Yolo Mosquito and Vector Control District 1-800-429-1022 www.FIGHTtheBITE.net
Presentation Developed By: Sacramento-Yolo Mosquito & Vector Control District
What Are Mosquitoes? A mosquito is a two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals.
Mosquito Life Cycle
egg
larva
pupa
adult
What Do Females Do That Males Don’t? Only female mosquitoes bite and feed on humans and animals.
Why Do Females Bite? Female mosquitoes need to feed on humans or animals, such as birds and horses before they can develop eggs.
Laying eggs
They suck blood through their proboscis.
Proboscis (A)
Where Do Mosquitoes Grow? Mosquitoes lay their eggs in standing water.
What Diseases Can Mosquitoes Carry? West Nile Virus Dog Heartworm Western Equine Encephalomyelitis
What Is West Nile Virus? West Nile Virus (WNV) is a mosquitoborne virus that can cause disease in humans, birds, horses, domestic and wild animals.
Where Did It Come From? The WNV virus was first isolated in the West Nile district, Northern Province, Uganda in 1937.
When Did It Arrive In The United States?
WNV was first detected in the United States during 1999.
Where Did It Travel?
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009 as of July 27
th
Is WNV Dangerous? West Nile Virus is now the most prevalent mosquito-borne disease in the United States.
How does it happen?
The cycle begins when an uninfected female mosquito bites an infected bird during the period (1 to 5 days) that the virus is circulated in the blood.
Will I Be Infected? 20% West Nile Fever 80% Asymptomatic
The majority of infected individuals fail to produce a full set of signs and symptoms. This is referred to as an inapparent infection.
How Long Do Symptoms Last? These symptoms can last two to three weeks with an uneventful recovery or the disease progressing to involve the central nervous system (CNS) resulting in severe disease in roughly 1% of cases: – West Nile Meningitis – West Nile Encephalitis – West Nile Poliomyelitis
Are You At Risk? * Mosquito exposure – Increased exposure = Increased risk
* Personal characteristics – Age, health, high blood pressure, etc…
How Does The District Control Mosquitoes? Integrated Pest Management: – Public Education – Surveillance – Biological Control – Physical Control – Chemical Control
Public Education
Surveillance
Biological Control
Physical Control
Chemical Control
What Can You Do? Follow the District D’s of Prevention DRAIN Standing Water DAWN and DUSK Are Times To Avoid Being
Outdoors DRESS In Long Sleeves & Pants When Outside DEFEND Yourself With An Effective Repellent DOORS and Screens Should Be In Good Working Condition DISTRICT Personnel Are Available To Help
What Else Can I Do? • Report neglected pools – Or other service requests
Educate my community – Tell my neighbors
Sacramento-Yolo Mosquito and Vector Control District 1-800-429-1022 www.FIGHTtheBITE.net
Related Documents
West Nile Virus, Mosquitoes And Pesticides
November 2019 10
West Nile Virus Redux
October 2019 11
West Nile Virus
June 2020 7
Mosquitoes And West
November 2019 14