Tag Archives: Disease

CDC Issues Travel Notice After Zika Virus Arrives in Puerto Rico

Health officials are warning would-be travelers about the spread of a mosquito-borne illness that might be causing a growing number of children to be born with smaller-than-usual heads.

Late last week, the Centers for Disease Control and Prevention (CDC) issued a travel notice for Puerto Rico after the island reported its first locally contracted case of the virus. The advisory encourages travelers to take proactive steps to prevent mosquito bites, like wearing insect repellant and long clothing. The CDC has issued similar warnings for Mexico, Central America and South America, as several other countries have said the virus has sickened humans there.

Zika often causes people to experience fever, joint pain, rashes and red eyes for up to a week, the CDC says, but the illness seldom results in hospitalization. However, the Brazilian Ministry of Health recently said it was investigating about 3,000 cases of microcephaly, a neurological disorder in which children are born with unusually small heads and underdeveloped brains.

Before this year, the ministry said it usually saw about 150-170 annual cases of microcephaly. But since the Zika virus arrived in May, the ministry said the number of suspected cases have surged to 2,975. Authorities are currently examining if there’s a conclusive link between the two.

The CDC said test results have shown that some Brazilian babies with microcephaly were infected with Zika, but other babies developed microcephaly and tested negative for the virus. There are other possible causes for the defect, so it will take some time to determine the culprit. Still, the CDC says woman who are pregnant should be extra careful to prevent mosquito bites.

There isn’t any vaccine that can prevent the virus or any medicine that can treat it, according to the CDC. Because the mosquitos that transmit Zika live all across the planet, the organization says it’s likely that the virus could spread to new regions where illnesses have yet to be reported.

The virus can remain in the bloodstreams of infected individuals for about a week, according to the CDC, during which time it’s extra important to avoid mosquito bites to prevent transmission. While the organization reports no one has acquired Zika in the United States, there has been at least one instance where a traveler got sick while visiting a foreign country and returned home.

California, Minnesota Health Officials Warn of Norovirus Outbreaks

Public health officials in California and Minnesota are warning about norovirus outbreaks, cautioning that the intestinal disease could sicken lots of people in those states this winter.

The California Department of Public Health announced last week that there had been 32 confirmed outbreaks of the disease since October, a number that greatly exceeds the total reported in the same window last year. Hundreds likely fell ill from the disease, officials said.

In Minnesota, the state Department of Health cautioned that the arrival of a new strain of the disease could cause some additional norovirus illnesses this winter. The department said it has investigated at least 20 outbreaks of the GII.17 Kawasaki strain since September. The strain is the same one that spurred many outbreaks in Asia last winter, officials said in a news release.

“Every few years, a new strain of norovirus emerges and causes many illnesses,” Amy Saupe, a foodborne disease epidemiologist with the department, said in a statement. “We don’t know yet if this new strain will lead to an increase in the number of outbreaks reported, but it could.”

According to the Centers for Disease Control and Prevention (CDC), norovirus is the top cause of stomach flu in the United States. The highly contagious virus sickens between 19 million and 21 million people, hospitalizes 56,000 to 71,000 and kills between 570 and 800 every year. Common symptoms include fever, diarrhea and vomiting. Most people recover within 1 to 3 days.

People get norovirus from eating tainted food or touching contaminated surfaces, making it relatively easy for the disease to spread in places like schools, daycares and nursing homes.

The Boston Globe reported a sick employee came to a Chipotle restaurant in the city earlier this month and 136 people — including some Boston College students — fell ill. There were some initial fears that outbreak was linked to an E. Coli outbreak at Chipotle restaurants in nine states, but the paper reported health officials ultimately determined that norovirus was at fault.

The CDC and other public health officials say proper disinfection, hand hygiene and food-handling techniques are vitally important to help prevent norovirus from spreading.

“One of the most important things you can do to avoid norovirus and other illnesses this holiday season is to wash your hands frequently with soap and running water for at least 20 seconds,” Dr. Karen Smith, the director of the California Department of Public Health, said in a statement. “This is especially important after using the bathroom, changing diapers, and before preparing or eating food. Hand sanitizers are not effective against norovirus.”

California Hospital Warns 350 Newborns May Have Been Exposed to Tuberculosis

A California hospital is warning that about 350 infants might have been exposed to tuberculosis.

Santa Clara Valley Medical Center in San Jose issued a news release Friday saying that a female employee who worked near the newborn nursery had been diagnosed with the potentially deadly disease.

The hospital said in the news release that it is contacting mothers who visited its Mother & Infant Care Center between mid-August and mid-November of this year. The hospital will screen them and their infants for tuberculosis and give them antibiotic medicine that kills the disease.

The hospital said its employee underwent an annual tuberculosis test in September and did not show any signs of the disease — including any symptoms. But when the employee later saw her doctor for an unrelated issue, the physician discovered the employee had in fact been infected.

According to the Centers for Disease Control and Prevention (CDC), tuberculosis is transmitted when an infected person coughs, sneezes or speaks. Nearby people can breathe in the bacteria. If the bacteria multiplies enough, they can develop symptoms like a bloody cough and chest pain.

The CDC said tuberculosis was once the leading cause of death in the United States, but there were fewer than 10,000 reported cases of the disease in 2013. Tuberculosis usually affects the lungs, but it can also affect other parts of the body including the brain, kidneys and spine.

Santa Clara Valley Medical Center said it placed the infected employee on leave to cut down the risk of exposing its patients, visitors and staff.

“While the risk of infection is low, the consequences of a tuberculosis infection in infants can be severe,” the hospital’s pediatrics chair, Dr. Stephen Harris, said in a statement. “That’s why we decided to do widespread testing and start preventative treatments for these infants as soon as possible.”

Boston College Students Fall Ill, Investigators Probe Link to Chipotle E. Coli Outbreak

Investigators were reportedly trying to determine if the illnesses that several Boston College students reported after eating at a Chipotle were tied to an E. Coli outbreak at the restaurant.

The Boston Herald, quoting a statement from a school spokesman, reported Monday that “several” Boston College students complained of gastrointestinal symptoms after eating at a Chipotle restaurant. The newspaper reported the state’s Department of Public Health was notified and was examining whether the illnesses were linked to Chipotle’s recent E. Coli scare.

According to the Centers for Disease Control and Prevention (CDC), 52 people in nine states have come down with one particular type of E. Coli since October. The CDC said that 47 of those people said they ate at a Chipotle restaurant in the week leading up to the onset of their illness.

In a statement to Reuters, a Chipotle spokesman said there wasn’t any evidence that the Boston College illnesses were related to the E. Coli outbreak. The spokesman said in the statement that there have not been any confirmed cases of the illness linked to Chipotle in Massachusetts.

Still, Boston television station WCVB reported that the Chipotle restaurant where the Boston College students ate was closed pending an investigation from Boston Inspectional Services. The television station placed the number of students who fell ill after eating at Chipotle at 30.

According to the CDC, there have been documented cases of the Chipotle-linked E. Coli strain in Washington, Oregon, California, Minnesota, Illinois, Ohio, Pennsylvania, New York and Maryland. The CDC said 20 people were hospitalized, but there were no reports of any deaths.

There were 40 cases in Washington (27) and Oregon (13), the CDC reported, and Chipotle voluntarily closed all of its 43 restaurants in the Seattle and Portland, Oregon, markets after the outbreaks were first reported. The company said all of those restaurants have since reopened.

It’s still not known what particular food item is responsible for the outbreak. Chipotle said in a news release on Friday that it has increased food safety practices since the outbreak first began.

The company’s stocks were trading at $750.42 in mid-October, which was near an all-time high. They have fallen more than $200 in the weeks since and were trading at $544.51 early Tuesday.

E. Coli symptoms include diarrhea and abdominal cramps. The disease can sometimes lead to kidney failure, but there haven’t been any reported cases in the outbreak.

The E. Coli outbreak linked to Chipotle restaurants deals with a different type of the bacteria than the one that has been connected to a rotisserie chicken salad sold in Costco stores.

CDC Reports Rise in Rabbit Fever

United States health officials are working to find out what’s behind a rise in cases of rabbit fever.

The rare disease is also known as tularemia and can be life-threatening, according to the Centers for Disease Control and Prevention (CDC). The organization said Thursday that there are usually only 125 cases of the disease in the United States every year, but there were 100 in just four states as of September 30. There has now been 235 total cases, the Associated Press reported.

According to the CDC, the disease is caused by a bacteria to which rabbits and other kinds of small rodents are easily susceptible. Humans can contract the disease through tick bites, handling animals that have been infected or by breathing in the infectious bacteria.

The CDC says the disease can lead to a variety of symptoms, depending on the bacteria enters the human body. The most serious infections occur when the bacteria spreads into the lungs, either directly via breathing or through the bloodstream after leaving an infection untreated.

The disease is treated through antibiotics and most patients have full recoveries, according to the CDC. But its symptoms (which can include fever, joint and muscle pain, difficulty breathing and vomiting) may make it hard to diagnose, as it can be mistaken for more common illnesses.

An 85-year-old man died and at least 48 people were hospitalized this year, the CDC said.

The CDC report says it’s not clear what is behind the increase in cases, particularly in the four-state region of Wyoming, Colorado, Nebraska and South Dakota where there were the 100 documented cases through the end of September. A possible explanation is that heavy rainfall there fostered vegetation growth and bacteria survival, as well as increased rodent populations.

While it’s not explicitly mentioned as a potential cause in the report released Thursday, the CDC website does list tularemia as a potential weapon that could be used in bioterrorism attacks. The website notes the bacteria is highly infections and can be transmitted through the air.

The CDC encourages people to wear insect repellent and use gloves when handling dead animals to help prevent infection.

Recalled vegetables linked to E. Coli outbreak at Costco stores

A tainted mix of celery and onions appears to be at fault for a multi-state E. Coli outbreak.

Taylor Farms Pacific recalled a list of products on Thursday after a link to the outbreak tied to Costco stores was discovered, according to a notice on the Food & Drug Administration website.

The California-based manufacturer produced a diced-vegetable mix that tested positive for E. Coli, according to the posting. It was used in a rotisserie chicken salad that was sold at Costco.

The vast majority of the 19 people infected with the bacteria reported buying or eating the salad before they got sick, according to the Centers for Disease Control and Prevention. Infections have been reported in Montana, Utah, California, Washington, Colorado, Missouri and Virginia.

The recall is being conducted “out of an abundance of caution,” according to the FDA.

Costco has stopped selling and producing the salad, the CDC noted. It encourages anyone who bought the product to throw it out, even if some has been eaten and no one has fallen ill.

The particular strain of E. Coli bacteria associated with the Costco outbreak is known to be deadly.

Reuters reported it’s the same one to blame for the 1993 outbreak at Jack in the Box restaurants. Four children died and hundreds more became sick after eating undercooked hamburgers.

No deaths have been reported this time, but the CDC says five people have been hospitalized and two people have developed a type of kidney failure called hemolytic uremic syndrome.

Some Antibiotics to Blame for Turning MRSA into a “Superbug”

According to a recent study published in Cell Host & Microbe, the first antibiotics used to usually treat MRSA could actually make the skin infection worse by triggering the body’s pathogen defense system.

The bacterium Staphylococcus aureus – also known as a “staph infection” – is carried on the skin or in the nose of most healthy people. Nature World Report states that 25% of the population is colonized with staph, but only 1% of the population is colonized with MRSA. MRSA is a form of Staphylococcus aureus, but it is resistant to methicillin along with other medicines.

“Individuals infected with MRSA who receive a beta-lactam antibiotic–one of the most common types of antibiotics–could end up being sicker than if they received no treatment at all,” George Liu of Cedars-Sinai Medical Center and co-senior study author said in a press release.

“Our findings underscore the urgent need to improve awareness of MRSA and rapidly diagnose these infections to avoid prescribing antibiotics that could put patients’ lives at risk,” he added.

Tech Times reports that the study showed that MRSA not only responds to beta-lactam antibiotics, but it will also adapt to them, which makes the disease stronger. The antibiotics weaken the bacteria’s enzymes that produces cell walls. However, the study found that some antibiotics were less effective, allowing the bacteria to rebuild a weaker cell wall. When this happens, the body’s immune system goes into overdrive, trying to destroy the weak cell wall, according to the Huffington Post.

“In situations where there is a lot of infection, this highly aggressive response can cause extensive inflammation and tissue damage, effectively making the consequences of the infection worse,” Liu said.

The challenge for physicians lies in prescribing the right antibiotics for people who have staph infections, or worse, MRSA. It can take a few days to determine if a specific antibiotic is going to make the infection worse.

And while the study did find these disturbing results, the researchers only performed these tests on rats. They say that they will need to conduct trials on humans before they can nail down the correct antibiotics to use in the treatment of staph and MRSA.

Brazil Man Tested for Ebola; Others Under Observation

A Brazilian man who visited Guinea is being tested for Ebola, Brazil’s Health Minister Marcelo Castro said on Wednesday.

The 46-year-old man arrived in Brazil on Nov. 6 and developed high fever with muscle pains and headaches two days later, he said. Officials declined to provide the man’s name.

After going to the emergency health clinic in Minas Gerais he was transferred to an infectious disease hospital in Rio de Janeiro. The Unit at Minas Gerais was shut down as a preventive measure.  

According to Reuters, Guinea is one of three impoverished West African countries, along with Liberia and Sierra Leone, that have suffered with the most deadly outbreak of the Ebola virus in recent years.

As a precaution and medical workers or other patients who had contact with the man are being monitored by health officials.  Brazil immediately informed international health authorities of the suspected case.

Scarlet Fever Making a Comeback and May Now Resist Antibiotics

After nearly 100 years, the bacterial infection, scarlet fever, has made a comeback in Britain and in parts of Asia. And to make matters worse, it may no longer be an easy treatable infection as new research suggests that the infection is showing signs of antibiotic resistance.

“We have not yet had an outbreak in Australia, but over the past five years there have been more than 5,000 cases in Hong Kong (a 10-fold increase) and more than 100,000 cases in China,” said Mark Walker, one of the researchers, in a news release. “And an outbreak in the UK has resulted in 12,000 cases since last year.

The Washington Post reports that scarlet fever is caused by a group of A Streptococcus bacteria that can turn strep throat into scarlet fever. Most people who are affected are children between the ages of 5 and 12. The disease develops a red, sandpaper-like rash on the person’s body, and while it’s unpleasant, it can easily be treated with antibiotics. There is currently no vaccine.

“We now have a situation which may change the nature of the disease and make it resistant to broad-spectrum treatments normally prescribed for respiratory tract infections, such as scarlet fever,” said Nouri Ben Zakour, one of the researchers.

The idea that this new outbreak of scarlet fever could easily be treated was rethought when researches from the University of Queensland discovered that the new scarlet fever cases were resisting antibiotics. While penicillin is still effective, other treatments such as tetracycline, clindamycin, and erythromycin may not be, which poses an immediate threat to people who are allergic to penicillin.

The rise in scarlet fever could pre-empt a future rise in rheumatic heart disease, which causes permanent heart damage. Knowing this, researchers hope to continue studying the patterns of the disease and the effects it has on a person’s health, according to Science World Report.

28 Californians and Millions of Birds Killed by West Nile Virus

A study, released Monday in the Proceedings of the National Academy of Sciences has found that the West Nile virus is annihilating the native bird population in the United States. The study looked at the impact of the virus on 49 species from information collected at over 500 bird banding stations across the U.S. from 1992 to 2007.
UCLA’s Ryan Harrigan and his colleagues found significant declines in survival rates associated with West Nile virus for 23 out of 49 of the species examined.

Millions of birds can die in a single year when West Nile hits species with large populations. Among the estimated 130 million red-eyed vireos in the United States, researchers believe the virus killed 29 percent, or more than 37 million.

West Nile, a mosquito-borne virus, was introduced in North America in 1989. It has drawn the most attention for its impact on humans, with 1 in 5 people who are infected developing a fever with other symptoms, according to the Center for Disease Control and Prevention. In rare cases, people develop a serious, sometimes fatal, neurologic illness.

According to the CDC, West Nile Virus which originated in birds, then spread to mammals and then humans killed 85 people last year with 2,122 cases reported. So far, 63 deaths have been reported, 28 in California alone, with 1,197 cases reported in the United States. The first deaths from West Nile Virus were reported in 1999.

The most deaths were reported in 2012 with 5674 cases reported and 286 deaths.