Betalaínas: colorantes naturales con actividad antioxidante. A raíz de la creciente preocupación por posibles efectos tóxicos de los colorantes sintéticos, se postulan como posibles reemplazantes a los pigmentos de origen natural. En este artículo se resumen los aspectos más importantes de las ventajas y características de las betalaínas, pigmentos hidrosolubles extraídos de la remolacha
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Who is at greatest risk of infection
z Wash your hands often with soap and water. If soap and water are not available, use an alcohol-based hand rub. 2009 H1N1 flu (sometimes cal ed “swine flu”) is a new with this new virus?
z Avoid touching your eyes, nose and mouth. Germs influenza virus that is spreading worldwide among people. So far, younger people have been more likely to be Because this virus is very different from current seasonal infected with 2009 H1N1 flu than older people. Most cases z Try to avoid close contact with sick people. influenza viruses, many people will not have protective of 2009 H1N1 have occurred in people younger than 25 immunity against it and the seasonal flu vaccine will not z Stay home if you are sick. CDC recommends that you years of age. At this time, there are relatively few cases of stay home from work or school and limit contact with 2009 H1N1 in people 65 or older, which is unusual when Influenza is unpredictable, but this flu season could be z Fol ow public health advice regarding school closures, worse than recent years because of the 2009 H1N1 virus. avoiding crowds and other social distancing measures. CDC is preparing for an early flu season and expects both Prevention
z Be prepared in case you get sick and need to stay home 2009 H1N1 flu and seasonal flu to cause il ness, hospital What can I do to protect myself from
for several days; a supply of over-the-counter medicines, getting sick from 2009 H1N1 flu?
alcohol-based hand rubs, tissues, facemasks and other How does 2009 H1N1 flu spread?
CDC recommends a three-step approach to fighting the related items might be useful and help avoid the need Both 2009 H1N1 flu and seasonal influenza are thought to flu: vaccination, everyday preventive actions including to make trips out in public while you are sick and spread mostly from person to person through the coughs frequent hand washing and staying home when sick, and sneezes of people who are sick with influenza. People and the correct use of antiviral drugs if your doctor also may get sick by touching something with flu viruses If You Get Sick
on it, and then touching their mouth or nose. A vaccine against 2009 H1N1 flu is being produced.
What should I do if I get sick?
How long can a sick person spread
To protect those at greatest risk of 2009 H1N1, CDC If you become ill with influenza-like symptoms this flu recommends that certain people get the 2009 H1N1 2009 H1N1 flu to others?
season you should stay home and avoid contact with other flu vaccine first when it becomes available. These key people except to seek medical care. Most people have People infected with 2009 H1N1 flu shed virus and may groups include people who are at higher risk of getting been able to recover at home from 2009 H1N1 without be able to infect others from 1 day before getting sick to sick or having serious flu complications, those who are needing medical care and the same is true of seasonal flu.
about 7 days after getting sick. This can be longer in some likely to come in contact with 2009 H1N1, and those who people, especial y children and people with weakened However, some people are at high risk of serious flu-related could infect young infants who cannot be vaccinated How severe is illness associated with
Children younger than 5, but especial y children this 2009 H1N1 flu virus?
2009 H1N1 flu il ness has ranged from mild to severe. Most z People who live with or provide care for children healthy people who have been sick with 2009 H1N1 have recovered without needing medical treatment, however, z Health care and emergency medical service personnel, hospitalizations and deaths from 2009 H1N1 have occurred. z People 6 months to 24 years of age , and Most people who have been hospitalized with 2009 H1N1 Neurological and neurodevelopmental conditions z People 25 to 64 years of age who are at higher risk for have had a medical condition that places them at higher [including disorders of the brain, spinal cord, 2009 H1N1 flu complications because of an underlying risk of serious flu-related complications. However, some muscular dystrophy, or spinal cord injury]. health condition or compromised immune systems.
people who have become very ill have been previously Chronic lung disease (such as chronic obstructive healthy. Severe infections have been reported among Everyday actions can help prevent the spread of
pulmonary disease [COPD] and cystic fibrosis) people of all ages. While few people over the age of 65 germs that cause respiratory il nesses like influenza. have been infected with this new virus, if people in this z Cover your nose and mouth with a tissue when you Blood disorders (such as sickle cell disease) age group become il , they are at higher risk of developing cough or sneeze. (Throw the tissue in the Endocrine disorders (such as diabetes mel itus) of serious influenza-related complications. CDC Metabolic disorders (such as inherited metabolic recommends the use of the antiviral drugs oseltamivir Weakened immune systems due to disease or medication (such as people with HIV or AIDS, or How long should I stay home if I’m sick?
CDC recommends that you stay home for at least 24 hours If you (or your child) are in one of the groups above and after your fever is gone except to get medical care or for develop flu-like symptoms, consult a health care provider other necessities. (Your fever should be gone without the to get advice about seeking medical care. Also, it’s possible use of a fever-reducing medicine.) Stay away from others for otherwise healthy people to develop severe il ness so as much as possible to keep from making others sick. any one concerned about their il ness should consult their Staying at home means that you should not leave your home except to seek medical care. This means avoiding There are “emergency warning signs” that should signal normal activities, including work, school, travel, shopping, social events, and public gatherings. If you must leave the house (for example to see your doctor), wear a facemask, Emergency Warning Signs
if you have one and it is tolerable, or cover coughs and In Children:
sneezes with a tissue and wash your hands often to keep from spreading flu to others. ast breathing or trouble breathing
luish skin color
ot drinking enough fluids
ot waking up or not interacting
eing so irritable that the child does not
want to be held
lu-like symptoms improve but then return
with fever and worse cough
ever with a rash
runny or stuffy nose
ifficulty breathing or shortness of breath
ain or pressure in the chest or abdomen
evere or persistent vomiting
Are there medicines to treat
*It’s important to note that not everyone
infection with this new virus?
with flu will have a fever.
Yes. There are prescriptions drugs cal ed “antivirals” that can treat influenza il ness, including 2009 H1N1. These drugs can make il ness milder and may also prevent serious For more information visit
complications. The priority use for influenza antiviral flu or
drugs this flu season is to treat people who are severely ill or call 800-CDC-INFO
(hospitalized) and sick people who are at increased risk
Environ. Sci. Technol. 2006 , 40, 2448-2454 New Risk Assessment Approach for Quotient (HQ ) field application rate/oral or contact LethalDose (LD50)). When the calculated value of HQ is higher than Systemic Insecticides: The Case of a threshold of 50, further studies are required. This thresholdis derived from data which only consider spray applications Honey Bees and Imidacloprid (Gau