California Department of Public Health (CDPH) Director and State
Public Health Officer Dr. Karen Smith today announced the first
confirmed case of Zika virus acquired in California. This case
involves transmission of Zika virus through sexual contact with a
Zika-infected partner who returned from a country where Zika
virus was circulating, not from a mosquito bite. The woman who
was infected was not pregnant and had not traveled out of the
country. She and her partner have fully recovered.
California Department of Public Health (CDPH) Director and State
Public Health Officer Dr. Karen Smith today advised that although
there is no evidence of mosquitoes carrying Zika virus in
California, people should always take steps to avoid mosquito
bites, including removing standing water and wearing insect
repellent when necessary. Californians should also be advised of
international travel alerts for the countries where Zika virus is
circulating.
Citizen Science Tick Collection Event Allows Public to
Participate in Tick-Borne Disease Research
Burlingame, CA – 15 January 2015
Aspiring entomologists have been invited to join San Mateo County
Mosquito and Vector Control District, San Mateo County Department
of Parks, and San Bruno Mountain Watch for a citizen science
event on February 6th, 2016 at San Bruno Mountain State and
County Park.
California Department of Public Health (CDPH) Director and State
Public Health Officer Dr. Karen Smith is urging Californians to
protect themselves against mosquito bites if traveling to Mexico
or Latin America, where there have been increased reports of the
mosquito-borne diseases chikungunya and dengue. Travelers should
also be aware that there is currently transmission of dengue on
the Big Island in Hawaii, and precautions against mosquito bites
are advised; there are no reports of dengue transmission on the
other Hawaiian islands.
California Department of Public Health (CDPH) Director and State
Public Health Officer Dr. Karen Smith is warning Californians to
protect themselves from two invasive mosquito species recently
found in California. Both species can transmit infectious
diseases, such as dengue fever, chikungunya and yellow fever.
This warning comes as two more counties are added to the list of
counties where Aedes aegypti (the yellow fever mosquito)
and Aedes albopictus (the Asian tiger mosquito) have
been detected.
Mosquitoes Collected from Menlo Park Post-Treatment Test Negative
for West Nile Virus
Burlingame, CA – 9 September 2015
Mosquito samples collected from Menlo Park following San Mateo
County Mosquito and Vector Control District’s adult mosquito
control treatment last Wednesday night, Sept. 2nd, have tested
negative for West Nile virus. The treatment achieved an 81%
reduction in adult mosquitoes in the area.
California Department of Public Health (CDPH) Director and State
Health Officer Dr. Karen Smith today announced that the
department, working closely with Yosemite National Park,
successfully reduced the risk of plague transmission at Crane
Flat Campground in Yosemite. The campground, which had been
closed for four nights to allow for rodent burrows to be treated
for fleas, is reopening today. The treatment controlled
potentially plague-infected fleas which could spread the disease
to humans and other warm-blooded hosts.
Mosquitoes Collected from Redwood City Post-Treatment Test
Negative for West Nile Virus
Burlingame, CA – 10 August 2015
Mosquito samples collected from Redwood City following San Mateo
County Mosquito and Vector Control District’s adult mosquito
control treatment last Wednesday night, Aug. 5th, have tested
negative for West Nile virus.
Mosquitoes Collected from Menlo Park Post-Treatment Test Negative
for West Nile Virus
Burlingame, CA – 6 August 2015
Mosquito samples collected from Menlo Park following San Mateo
County Mosquito and Vector Control District’s adult mosquito
control treatment last Sunday night, Aug. 2nd, have tested
negative for West Nile virus. The treatment achieved a 93%
reduction in adult mosquitoes in the area.
Adult Mosquito Treatment in Areas of Menlo Park Scheduled for
Night of Aug. 2nd
Burlingame, CA – 30 July 2015
San Mateo County Mosquito and Vector Control District (SMCMVCD)
detected West Nile Virus (WNV) in adult mosquitoes collected on
July 29th, 2015 from the 94025 ZIP code area. The District will
conduct truck-mounted adult mosquito treatment around the
detection site in an effort to prevent human cases of WNV.
Weather permitting, the adult mosquito treatment is scheduled for
the night of Sunday, Aug. 2nd between 9pm and 5am Monday morning.
California Department of Public Health (CDPH) Director and State
Health Officer Dr. Karen Smith today announced the first
confirmed death in California due to West Nile virus (WNV). The
deceased person was a senior citizen in Nevada County.
“This death is a tragic reminder of how severe West Nile virus
disease can be,” said Dr. Smith. “West Nile virus activity is
more widespread in 2015 than in years past. Californians need to
be vigilant in protecting themselves.”
California Department of Public Health (CDPH) Director and State
Health Officer Dr. Karen Smith today announced that the level of
West Nile virus (WNV) activity is on the rise throughout the
state.
“While there have been no human cases of West Nile virus reported
so far this year, it is only a matter of time before we see the
first case,” Dr. Smith said. “As people go outdoors to enjoy the
warm weather we’ve been experiencing, we’d like them to be safe
and know how to protect themselves against West Nile virus.”
No West Nile Virus Found in Mosquitoes Collected in Menlo Park
Burlingame, CA – April 24, 2015
Following the detection of West Nile virus on April 20th in a
dead American crow collected from Menlo Park, San Mateo County
Mosquito and Vector Control District has conducted additional
targeted disease surveillance. Mosquitoes were collected from the
surrounding area and tested for West Nile virus. The mosquitoes
tested negative.
Dead Bird is First Indication of West Nile Virus in San Mateo
County in 2015
Burlingame, CA – April 21, 2015
A dead bird collected from Menlo Park on April 20, 2015 has
tested positive for West Nile virus (WNV). This is the first
indication of WNV in San Mateo County in 2015. These results
arrive, coincidentally, at the beginning of West Nile Virus and
Mosquito and Vector Control Awareness Week, April 19th through
25th, 2015.
Invasive Aedes aegypti Mosquitoes Present in San Mateo
County
Burlingame, CA – February 19, 2015
San Mateo County Mosquito and Vector Control District continues
to detect invasive Aedes aegypti mosquitoes in San Mateo
County. This species was most recently found on January 27th,
2015 in areas of Menlo Park.
