Welcome to the South Lake Mosquito Abatement District (SLMAD) Website. Here you will find information about mosquitoes, the dangers they pose, and how to help prevent them. If you have questions or comments regarding this website, please contact us.


West Nile Virus Stats

West Nile virus, 2017:

Watch this space for updates on human WNV cases occurring in Illinois. Continue to protect yourself from mosquitoes!

Questions or Concerns

Upcoming Events

Recommendations from the Illinois Department of Public Health; testing for West Nile and Zika

Illinois Department of Public Health



May 18, 2017


Melaney Arnold – 217-558-0500

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Protect Yourself This Mosquito Season

IDPH offers tips to guard against mosquito bites

SPRINGFIELD – As we enter mosquito season, the Illinois Department of Public Health (IDPH) is reminding Illinoisans of the best ways to avoid being bitten. Different types of mosquitoes can carry different types of diseases, like West Nile virus and Zika virus, but steps you can take to protect yourself from mosquito bites are essentially the same.

“Each year since 2002 when we saw the first human cases of West Nile virus in Illinois, we’ve seen the virus circulate across the state,” said IDPH Director Nirav D. Shah, M.D. J.D. “Now, for the second summer, we’re monitoring for Zika virus in Illinois. While Zika is also primarily transmitted through the bite of a mosquito, the main type of mosquito that carries Zika virus is rarely found in Illinois. However, taking some simple precautions can help you avoid mosquito bites, regardless of the type of mosquito or the diseases they carry.”

West Nile virus is transmitted through the bite of an infected Culex pipiens, “house” mosquito. Mild cases of West Nile virus infections may cause a slight fever or headache. More severe infections are marked by a rapid onset of a high fever with head and body aches, disorientation, tremors, convulsions and, in the most severe cases, paralysis or death. Symptoms usually occur from three to 14 days after the bite of an infected mosquito. However, four out of five people infected with West Nile virus will not show any symptoms. People older than 50 are at higher risk for severe illness from West Nile Virus.

Zika virus is primarily transmitted through the bite of an Aedes aegypti mosquito, a mosquito that rarely has been found in Illinois. Unlike West Nile virus, Zika virus can be passed from person to person through sex, so it’s important to wear a condom if you or your partner may have been exposed to Zika. Many people infected with Zika virus won’t have symptoms or will have only mild symptoms and might not realize they have been infected. The most common symptoms of Zika are fever, rash, joint pain, and conjunctivitis (red eyes), and typically last several days to a week. However, Zika virus infection during pregnancy can cause a serious birth defect called microcephaly, as well as other severe fetal brain defects. Since December 2015, 116 cases of Zika virus have been reported in Illinois; 115 cases are travel-related and one case occurred through sex with someone who traveled to an area with Zika virus. More information about Zika virus can be found on the IDPH website.

Predicting how bad the mosquito season will be is like predicting the weather - it can change week to week. The key factors in determining high or low levels of mosquito activity are temperature and rainfall. Although people usually notice mosquitoes during rainy conditions, those mosquitoes are commonly called floodwater or nuisance mosquitoes (Aedes vexans) and typically do not carry disease. In hot, dry weather, mosquitoes that carry West Nile virus breed in stagnant water, like street catch basins and ditches, and multiply rapidly. Similarly, the type of mosquito that carries Zika virus also breeds in stagnant water like empty flower pots, tires, and any container that holds water that is not changed weekly. There are two other types of mosquitoes (Aedes albopictus and Aedes triseriatus) found in Illinois that can also carry disease and breed in water-collecting containers.

Here are some simple precautions you can take to reduce the number of mosquitoes around your home and protect yourself from being bitten. Precautions include practicing the three “R’s” – reduce, repel, and report.

REDUCE - make sure doors and windows have tight-fitting screens. Repair or replace screens that have tears or other openings. Try to keep doors and windows shut.

Eliminate, or refresh each week, all sources of standing water where mosquitoes can breed, including water in bird baths, ponds, flowerpots, wading pools, old tires, and any other containers.

• REPEL - when outdoors, wear shoes and socks, long pants and a long-sleeved shirt, and apply insect repellent that contains DEET, picaridin, oil of lemon eucalyptus or IR 3535, according to label instructions. Consult a physician before using repellents on infants.

• REPORT – report locations where you see water sitting stagnant for more than a week such as roadside ditches, flooded yards, and similar locations that may produce mosquitoes. The local health department or city government may be able to add larvicide to the water, which will kill any mosquito eggs.

Additional information about West Nile virus can be found on the IDPH website.

Zika Case Counts in the US—from CDC

Zika virus disease is now a nationally notifiable condition. Cases are reported to CDC by state, territorial, and local health departments using standard case definitions. This webpage contains provisional data reported to ArboNET for January 1, 2015 – April 12, 2017.

US States

· 5,234 Zika virus disease cases reported

o 4,935 cases in travelers returning from affected areas

o 223 cases acquired through presumed local mosquito-borne transmission in Florida (N=217) and Texas (N=6)

o 76 cases acquired through other routes, including sexual transmission (N=46), congenital infection (N=28), laboratory transmission (N=1), and person-to-person through an unknown route (N=1)

US Territories

· 36,526 Zika virus disease cases reported

o 143 cases in travelers returning from affected areas

o 36,383 cases acquired through presumed local mosquito-borne transmission

o 0 cases acquired through other routes*

*Sexually transmitted cases are not reported for US territories because with local transmission of Zika virus it is not possible to determine whether infection occurred due to mosquito-borne or sexual transmission.


6 April 2017 by Military News

Sesame Street and SC Johnson Offer Lessons for Little Ones to Help Prevent Mosquito Bites

Beloved Muppets Characters Entertain and Teach with "1, 2, 3 Stay Away Mosquitoes"

RACINE, Wis., April 6, 2017 /PRNewswire/ -- Another mosquito season is approaching, and Sesame Street and SC Johnson are working together to raise awareness and share critical information about mosquito bite prevention. A education program called 1, 2, 3 Stay Away Mosquitoes, features Muppet friends Grover, Ernie, The Count and Rosita, and provides free content to children and caregivers with tips to avoid mosquitoes that may carry disease and remove breeding grounds. It also offers age-appropriate information about the benefits of wearing protective clothing and repellent.

"Education on how to avoid bites is key to preventing mosquito-borne diseases like malaria, Zika and dengue fever," said Kelly M. Semrau, Senior Vice President – Global Corporate Affairs, Communication and Sustainability at SC Johnson. "It is vitally important for families to start thinking about the approaching mosquito season now, and 1, 2, 3 Stay Away Mosquitoes is a great place to begin."

The materials, available in English and Spanish, include two online videos (attached to this article or available at the link), activity sheets for children, and tips for parents on a digital toolkit at: www.sesamestreet.org/mosquito. The online information prompts parents to create mosquito-free places for children and provides helpful advice such as:

· Mosquitoes love water and wet areas. Remove standing water from any place it collects, like flowerpots, drains, birdbaths, children's pools, and roof gutters, and teach children not to play in puddles.

· Make sure your home has screens on doors and windows. Even small holes can let in mosquitoes, so be sure to repair any tears in the screens. Children can help by playing "detective" to find any holes in need of repair!

· Mosquito netting can also be used to protect strollers and infant carriers or when sleeping outdoors.

· When outdoors, use personal repellent, following the label instructions, and wear light colored and long-sleeved clothing.

"It's wonderful to partner with Sesame Workshop, a trusted voice for children and parents for decades," added Semrau. "We are so proud to be a part of this effort."

As a family company, SC Johnson believes in having a positive impact on communities and is dedicated to improving the health and well-being of people locally and globally. As part of this commitment, SC Johnson pledged to donate $15 million in resources to combat the rising global outbreak of mosquito-borne disease. To date, more than $8 million of OFF!® products and financial donations have been provided to organizations around the world, especially those in regions with high risk of mosquito-borne diseases like malaria, Zika, West Nile, chikungunya and dengue fever.

Located in Racine, Wisconsin near the company's world headquarters, the SC Johnson Entomology Research Center (ERC) was established in 1957 and remains one of the world's largest private, urban entomology research centers. For 60 years, SC Johnson researchers have developed products and solutions consumers can trust to protect them and their homes from household pests such as mosquitoes, cockroaches, ants, wasps and the common house fly. Researchers study all aspects of insect behavior, development and methods of insect control.

SC Johnson is a family company dedicated to innovative, high-quality products, excellence in the workplace and a long-term commitment to the environment and the communities in which it operates. Based in the USA, the company is one of the world's leading manufacturers of household cleaning products and products for home storage, air care, pest control and shoe care, as well as professional products. It markets such well-known brands as GLADE®, KIWI®, OFF!®, PLEDGE®, RAID®, SCRUBBING BUBBLES®, SHOUT®, WINDEX® and ZIPLOC® in the U.S. and beyond, with brands marketed outside the U.S. including AUTAN®, TANA®, BAMA®, BAYGON®, BRISE®, KABIKILLER®, KLEAR®, MR MUSCLE® and RIDSECT®. The 131-year-old company, which generates $10 billion in sales, employs approximately 13,000 people globally and sells products in virtually every country around the world. www.scjohnson.com


How to repel mosquitoes!


Stay away from Mosquitoes!


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