Food-borne bacteria up miscarriage risk early in pregnancy

February 22, 2017

Feb 22: Listeria, a common food-borne bacterium, may pose a greater risk of miscarriage in the early stages of pregnancy than previously thought, says a study.

pregnancy“For many years, listeria has been associated with adverse outcomes in pregnancy, but particularly at the end of pregnancy,” said one of the researchers Ted Golos, Professor at University of Wisconsin-Madison in the US.

“What wasn’t known with much clarity before this study is that it appears it’s a severe risk factor in early pregnancy,” Golos said.

Pregnant women are warned to avoid many of the foods -- among them unpasteurised milk and soft cheese, raw sprouts, melon and deli meats not carefully handled -- that can harbour listeria, because the bacterium is known to cause miscarriage and still-birth, and spur premature labour.

But when it occurs, listeria infection in pregnancy may go unnoticed.

For the study, four pregnant rhesus macaques at the Wisconsin National Primate Research Centre were fed doses of the listeria comparable to what one might encounter in contaminated food.

None of the monkeys showed obvious signs of infection before their pregnancies came to abrupt ends, according to the results published in the journal mBio.

But in tissue samples taken after each monkey experienced intrauterine fetal death, the researchers found that listeria had invaded the placenta -- the connection between the mother-to-be and the foetus, which usually prevents transmission of bacteria -- as well as the endometrium, the lining of the uterus.

The researchers believe the inflammation caused by the maternal immune response to the fast-moving listeria also affects the placenta, keeping it from protecting the foetus.

The results suggest listeria (and perhaps other pathogens) may be the culprit in some miscarriages that usually go without diagnosed cause.

“There are effective antibiotics available. It is treatable,” said lead author of the study Bryce Wolfe, a graduate student at University of Wisconsin-Madison.

“The issue is that because it’s asymptomatic, the foetus may be infected by the time anyone realises the mother was infected,” Wolfe explained.

Comments

Wellspringivfs…
 - 
Thursday, 8 Feb 2018

Great post. Pregnant women are warned to avoid some foods such as unpasteurized milk, raw meat, and sprouts etc. because that may harbor listeria which may cause pregnancy complications such as miscarriage and stillbirth. http://www.wellspringivfsurrogacy.com/

Leesa
 - 
Thursday, 4 Jan 2018

Nice article. Listeria, a common food-borne bacterium increases the risk of miscarriage in early stages of pregnancy. It is important to follow the food safety measures. Listeria infection in pregnancy often goes unnoticed because of lack of awareness.  Expecting mothers should strictly avoid the food intake which contains listeria, as it may lead to miscarriage. To know more about pregnancy visit http://www.progenesisivf.com/

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Agencies
July 4,2020

The Union health ministry on Friday revised the dosage of anti-viral drug remdesivir to be administered to coronavirus patients in the moderate stage of illness from the earlier six days to five days as it issued an updated 'Clinical Management Protocols for COVID-19'.

The drug, administered in the form of injection, should be given at a dose of 200 mg on day one followed by 100 mg daily for four days (total five days), the new treatment protocols stated.

The Health Ministry on June 13 had allowed the use of remdesivir for restricted emergency use in moderate cases under "investigational therapies".

"Under emergency use authorisation, remdesivir may be considered for patients in moderate stage requiring oxygen support," the document stated.

It is not recommended for those with severe renal impairment and high level of liver enzymes, pregnant and lactating women, and those below 12 years, it said.

The ministry also okayed off-label application of tocilizumab, a drug that modifies the immune system or its functioning, and convalescent plasma for treating COVID-19 patients in the moderate stage of illness as "investigational therapies".

It also recommended hydroxychloroquine for patients during the early course of the disease and not for critically-ill patients.

On June 27, the ministry had included an inexpensive, widely used steroid dexamethasone in treatment protocols for COVID-19 patients in the moderate to severe stages of their illness among other therapeutic measures.

The ministry advised use of dexamethasone, which is already used in a wide range of conditions for its anti-inflammatory and immunosuppressant effects, as an alternative choice to methylprednisolone for managing moderate to severe cases of coronavirus infection.

India's COVID-19 cases soared by over 20,000 in a day for the first time taking the country's total tally to 6,25,544 on Friday while the death toll climbed to 18,213 with 379 new fatalities, according to the Union Health Ministry data updated at 8 am.

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Agencies
May 25,2020

Singapore, May 25: COVID-19 patients are no longer infectious after 11 days of getting sick even though some may still test positive, according to a new study by infectious disease experts in Singapore.

A positive test "does not equate to infectiousness or viable virus," a joint research paper by Singapore's National Centre for Infectious Diseases and the Academy of Medicine, Singapore said. The virus "could not be isolated or cultured after day 11 of illness."

The paper was based on a study of 73 patents in the city-state.

The latest findings may have implications on the country's patient discharge policy. The discharge criteria is currently based on negative test results rather than infectiousness.

Singapore's strategy on managing COVID-19 patients is guided by the latest local and international clinical scientific evidence, and the Ministry of Health will evaluate if the latest evidence can be incorporated into its patient clinical management plan, according to a report by the Straits Times.

So far, 13,882, or about 45% of the total 31,068 Covid-19 patients in Singapore have been discharged from hospitals and community facilities. Singapore reported 642 new Covid-19 cases as of noon on Saturday.

The government has been actively screening pre-school staff as it prepares to reopen pre-schools from June 2. On Friday, two pre-school employees tested positive for the novel coronavirus, bringing the total number of confirmed cases among pre-school staff to seven, according to the Ministry of Health.

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News Network
March 6,2020

Mar 6: The spread of the new coronavirus is shining the spotlight on a little-discussed gender split: men wash their hands after using the bathroom less than women, years of research and on-the-ground observations show.

Health officials around the world advise that deliberate, regular handwashing is one of the best weapons against the virus which causes a flu-like respiratory illness that can kill and has spread to around 80 countries.

The Centers for Disease Control and Prevention's online fact sheet "Handwashing: A corporate activity," cites a 2009 study that finds "only 31% of men and 65% of women washed their hands" after using a public restroom.

Social media comments about men's handwashing lapses forced an august British institution to caution visitors about bathroom behaviour this week.

After author Sathnam Sanghera complained on Twitter about "grown," "educated" men in the British Library toilets not washing their hands, the library responded, putting up additional signs reminding patrons to wash their hands in men's and women's bathrooms.

Thanks to "visitor feedback," a spokesman told Reuters, "we have increased further the number of posters in public toilets so that visitors are reminded of the importance of good hygiene at exactly the point where they can wash their hands."

Men and women approach handwashing after using the restroom differently, according to multiple surveys and field studies.

"Women wash their hands significantly more often, use soap more often, and wash their hands somewhat longer than men," according to a 2013 Michigan State University field study conducted by research assistants who observed nearly 4,000 people in restrooms around East Lansing, Michigan.

The study found 14.6% of men did not wash their hands at all after using the bathroom and 35.1% wet their hands but did not use soap, compared to 7.1% and 15.1% of women, respectively.

"If you stand in the men's bathroom at work, and watch men leave, they mostly don't wash their hands if they used the urinal," said one New York City public relations executive, who did not want to be identified for fear of alienating his colleagues.

Since the virus's spread, he's seen an uptick in men's handwashing at work, he noted. "I, for the record, do wash my hands all the time," he added.

Female medical staff in critical care units "washed their hands significantly more often than did their male counterparts after patient contact," a 2001 study published in the American Journal of Infection Control found.

Middle-aged women with some college education had the highest level of knowledge about hand hygiene, a survey published in 2019 by BMC Public Health, an open access public health journal, found.

Early information about coronavirus infection in China shows that men may be more susceptible to the disease. Just over 58% of the more than 1,000 COVID-19 patients reported in China through Jan. 29, 2020, were male, research published in the New England Journal of Medicine shows.

Researchers have not linked the difference to hand hygiene.

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