Subscribe via RSS Feed Connect on Pinterest Connect on Google Plus Connect on YouTube

Babesiosis

Go to the full list of diseases

Disease Details

Incubation Period:

  • 1 - 8 weeks

Transmission Type(s):

Disease Reservoirs

Disease Agents

About Babesiosis

Babesiosis is caused by microscopic parasites that infect red blood cells and are spread by certain ticks. In the United States, tickborne transmission is most common in particular regions and seasons: it mainly occurs in parts of the Northeast and upper Midwest and usually peaks during the warm months.

Geographic Distribution

In 2013, the 1,762 cases were reported in residents of 22 of the 27 states in which babesiosis was a reportable condition (Figure 2). The other 5 states did not report any cases.

Most (95%) of the cases were reported by 7 states: Connecticut, Massachusetts, Minnesota, New Jersey, New York, Rhode Island, and Wisconsin. Tickborne transmission of Babesia parasites is well established in these states.

Seasonality

Although cases of babesiosis can occur during any month, the majority of people reported getting sick during the spring or summer months. Among the 1,276 patients for whom data were available, 1,088 (85%) had symptom onset dates during June–August

Symptoms

Many people who are infected with Babesia microti feel fine and do not have any symptoms. Some people develop nonspecific flu-like symptoms, such as fever, chills, sweats, headache, body aches, loss of appetite, nausea, or fatigue.

Because Babesia parasites infect and destroy red blood cells, babesiosis can cause a special type of anemia called hemolytic anemia. This type of anemia can lead to jaundice (yellowing of the skin) and dark urine.

Babesiosis Prevention

While it is a good idea to take preventive measures against ticks year-round, be extra vigilant in warmer months (April-September) when ticks are most active.

Avoid Direct Contact with Ticks

  • Avoid wooded and bushy areas with high grass and leaf litter.
  • Walk in the center of trails.

Repel Ticks with DEET or Permethrin

  • Use repellents that contain 20 to 30% DEET (N, N-diethyl-m-toluamide) on exposed skin and clothing for protection that lasts up to several hours. Always follow product instructions. Parents should apply this product to their children, avoiding hands, eyes, and mouth.
  • Use products that contain permethrin on clothing. Treat clothing and gear, such as boots, pants, socks and tents with products containing 0.5% permethrin. It remains protective through several washings. Pre-treated clothing is available and may be protective longer.
  • Other repellents registered by the Environmental Protection Agency (EPA) may be found at http://cfpub.epa.gov/oppref/insect/.External Web Site Icon

Find and Remove Ticks from Your Body

  • Bathe or shower as soon as possible after coming indoors (preferably within two hours) to wash off and more easily find ticks that are crawling on you.
  • Conduct a full-body tick check using a hand-held or full-length mirror to view all parts of your body upon return from tick-infested areas. Parents should check their children for ticks under the arms, in and around the ears, inside the belly button, behind the knees, between the legs, around the waist, and especially in their hair.
  • Examine gear and pets. Ticks can ride into the home on clothing and pets, then attach to a person later, so carefully examine pets, coats, and day packs.
  • Tumble clothes in a dryer on high heat for an hour to kill remaining ticks. (Some research suggests that shorter drying times may also be effective, particularly if the clothing is not wet.)

Read More

Read more about Babesiosis at the Centers for Disease Control (CDC) Website