Posts Tagged ‘Africa’

Rabies Alert: CDC Highlights Threat to Travelers

Friday, October 15th, 2010 by

Though it may be far from many travelers’ minds, rabies poses a lethal threat in most parts of the world.  Today’s travel bulletin addressed the 100th rabies related death in Indonesia.  Earlier this month the Centers for Disease Control (CDC) reported on a fatal case of rabies acquired by a Virginia man in India in 2009. Rabies is rare in the U.S.– since 2000, only 31 cases have been reported but seven were acquired abroad. Cases were contracted by Americans traveling in India, the Philippines, Mexico, Ghana, El Salvador and Haiti. Rabies is transmitted by animal bites—most commonly by dogs but also wild animals, including bats.

The biggest threat is posed by dogs in Asia and Africa, but very few countries are free of rabies (see chart below). And many rabies cases are likely treated abroad and not reported. According to the CDC, the actual rate of rabies exposure in tourists has not been calculated with accuracy; however, studies have found a range of roughly 16 to 200 infections per 100,000 travelers.

Rabies immunization is widely available and is a good idea if you are traveling to the developing world. Unless treated early, rabies is usually fatal. Travelers are advised to avoid contact with unattended dogs, and spelunkers should seek treatment if they come into physical contact with a cave-dwelling bat that produces a scratch or cut.

Countries reporting no indigenous cases of rabies during 20051

Source: Centers for Disease Control   

Region Countries
Africa  Cape Verde, Libya, Mauritius, Réunion, São Tome and Principe, and Seychelles
Americas North: Bermuda, St. Pierre and Miquelon Caribbean: Antigua and Barbuda, Aruba, Bahamas, Barbados, Cayman Islands, Dominica, Guadeloupe, Jamaica, Martinique, Montserrat, Netherlands Antilles, Saint Kitts (Saint Christopher) and Nevis, Saint Lucia, Saint Martin, Saint Vincent and Grenadines, Turks and Caicos, and Virgin Islands (UK and US)South: Uruguay
Asia Hong Kong, Japan, Kuwait, Lebanon, Malaysia (Sabah), Qatar, Singapore, United Arab Emirates
Europe Austria, Belgium, Cyprus, Czech Republic2, Denmark2, Finland, France2, Gibraltar, Greece, Iceland, Ireland, Isle of Man, Italy, Luxemburg, Netherlands2, Norway, Portugal, Spain2 (except Ceuta/ Melilla), Sweden, Switzerland, and United Kingdom2
Oceania3 Australia2, Northern Mariana Islands, Cook Islands, Fiji, French Polynesia, Guam, Hawaii, Kiribati, Micronesia, New Caledonia, New Zealand, Palau, Papua New Guinea, Samoa, and Vanuatu

1Bat rabies may exist in some areas that are reportedly free of rabies in other animals.

2Bat lyssa viruses are known to exist in these areas that are reportedly free of rabies in other animals.

3Most of Pacific Oceania is reportedly rabies-free.

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Travel Bulletin Africa: Cholera outbreaks affect central African countries

Tuesday, October 12th, 2010 by

The current wave of cholera outbreaks affecting Central Africa started a few months ago. As of  October 3rd, 40,468 cases and 1,879 deaths have been reported in four countries (Cameroon, Chad, Niger and Nigeria). Seasonal factors, such as the flooding brought on by the rainy season, as well as poor hygiene conditions and population movements in the area contribute to this unusually high incidence of cholera. Nevertheless this area known to be endemic for cholera is regularly affected by small outbreaks.

The World Health Organization (WHO), with international and national health partners, is providing technical support to the ministries of health at the country and sub-regional levels. WHO is working to strengthen surveillance activities. Supplies for case management and chlorination of water have also been dispatched to some of the affected areas. The Ministries of Health of the four affected countries are planning to organize a cross border meeting in Abuja in order to reinforce the surveillance and revise the preparedness and response plans to cholera epidemics in the localities around Lake Chad.

Breakdown by country:

Cameroon: 7,869 cases including 515 deaths (case fatality rate -CFR 6.5%) have been reported in 6 regions (Centre, Extreme Nord, Littoral, Nord, Ouest, Sud Ouest) between May 6th and October 3rd. The majority of cases (97%) are reported from the Extreme Nord region. Preventive and control measures are ongoing. A Cholera Command and Control Centre has been set up in Maroua in the Extreme Nord region by the Ministry of Health with the support from WHO as health cluster lead and in close collaboration with other health and water and sanitation partners. The role of the Centre is to provide technical coordination for partners in the areas of epidemiological and laboratory surveillance, case management, social mobilization, logistics and infection control/water and sanitation in treatment centers. The system should also provide immediate alerts of new outbreaks.

Chad: 2,508 cases including 111 deaths (CFR 4.4%) are reported in 12 health districts in 6 regions between July 13th and October 3rd. Prevention and control measures are being implemented by national authorities with support from several partners (Médecins Sans Frontières (MSF), National Red Cross, Oxfam, The International Rescue Committee (IRC), International Medical Corps (IMC), UNICEF, WHO).

Niger: 976 cases including 62 deaths (CFR 6.4%) have been reported in Diffa, Maradi, Tahoua and Zinder regions between July 3rd and October 1st. Preventive and control measures are ongoing.

Nigeria: 29,115 cases including 1,191 deaths (CFR 4.1%) have been reported between January 4th and October 3rd, in 144 LGAs in 15 States including the Federal Capital Territory (FCT). The outbreak is still ongoing and spreading to new geographical areas. Severe flooding and displacement of large numbers of people have occurred, aggravating the situation.

Copyright © 2010, World Health Organization

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The World’s Blood Supply — How Safe Is It?

Thursday, June 17th, 2010 by

While most were unaware of it, June 14th was “World Blood Donor Day”, celebrated internationally to encourage those eligible to donate blood at least once a year.  Indeed, although 95% of Americans either receive blood during their lifetime, or know someone who has, only about 8% of Americans currently donate blood.  The requirements are fairly simple: be 16 or older, weigh at least 110 pounds, and enjoy good health.  Apart from doing the right thing, donating blood includes free screening for infectious diseases such as HIV and hepatitis.

The need for “good” blood around the world is critical.  The World Health Organization (WHO) makes a strong statement on blood transfusion safety and places the responsibility for enforcing it on the health administrators around the globe to “galvanize entire communities towards regular and non-remunerated blood donations.”  Just yesterday, one of our clients in China inquired about the reliability of blood in that country.  In fact, some of the blood collected in China may still be contaminated with the HIV virus.  Over the past twenty years, hundreds of cases with dozens of deaths have been traced to blood collected from those in China willing to sell their blood.  Following a government ban on imported blood products in the mid 1980s, literally thousands of blood and plasma collection stations popped up in China offering remuneration for donors. 

These unregulated centers used an unusual method of collecting blood and then reinfusing donors with pooled red blood cells after the plasma had been removed.  The technique was practiced in order to speed recovery following donation but is thought to have infected hundreds of thousands of donors and those who received blood transfusions.  Although Chinese authorities have endeavored to ban this practice and close illegal blood donation stations, the problem has not gone away.  A report published in 2007 claimed that China’s blood supply is still not being properly monitored for HIV.  The demand for blood products is growing, and the supply is short which “creates an economic incentive for hospitals to rely on illegal, untested blood donations.”

China is not alone.  The World Health Organization estimates that 5 – 10% of all HIV infections in Africa occur as a result of unsafe blood transfusions.  In addition, countless thousands are infected with hepatitis and/or malaria due to the lack of proper screening.  The organization “Safe Blood for Africa” is attempting to correct the problem by encouraging voluntary blood donations from adequately screened applicants and discouraging facilities from using untested blood.

The United States, Canada, Japan, France and a host of other developed countries experienced similar problems with contaminated blood from for-profit centers in the late 1970s and early 1980s before adequate screening for HIV and hepatitis was available.  We can only hope that emerging countries learn quickly from the experience of others.  In the meantime, the international traveler must be aware that significant risks still exist from getting blood products in many parts of the world.

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CDC Updates Dengue and Polio Outbreaks

Friday, June 4th, 2010 by

Key West, FL has reported 28 cases of dengue fever since July 2009 – prior to July 2009 dengue was absent from the continental U.S. since 1945 and from Florida since 1934. Why dengue has returned to Florida is still being investigated but some contributing factors might be an increase in mosquitoes capable of delivering the disease, an increase in international travel to areas where dengue fever is more common (Key West is, after all, a Caribbean destination — see below), and the popularity of south Florida as a vacation destination.

Travelers headed to Africa, the South Pacific, Central and South America, the Caribbean and Middle East are reminded to take precautions to guard against the mosquito while traveling.  According to the Centers for Disease Control (CDC), a high number of cases of dengue fever, are being reported from the following areas:
Africa
Cape Verde, Senegal, and the Indian Ocean islands of Mayotte and Reunion

South Pacific
Malaysia, Philippines, Singapore, Sri Lanka, Vietnam and the northern parts of Queensland, Australia

Central and South America and the Caribbean
Argentina, Brazil, Colombia, Costa Rica, Dominican Republic, El Salvador, French Guiana, Guadeloupe, Honduras, Peru and Puerto Rico

Middle East
Jeddah (Saudi Arabia)

Meanwhile,the polio outbreak in Tajikistan seems to be spreading to the borders it shares with Uzbekistan.   An additional 261 cases have been reported since our post in early May.  The CDC is reminding travelers headed to these areas to talk to their doctors regarding the necessary vaccinations for children and those previously vaccinated. 

When traveling into any area affected by an outbreak, be smart, protect yourself however you can, and practice good hygiene.

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For Swine Flu Root Causes and Risks, Dig Into Environment

Friday, May 1st, 2009 by

watermexico2Amid all the news and speculation, it’s natural to wonder how Influenza A H1N1 got off to such a galloping start in Mexico. Reports are coming in about cultural resistance to seeking medical care,  which no doubt is a contributing factor.  But I was struck by a report filed by Jason Beaubien of NPR  potentially linking the flu outbreak to the scarcity of clean water in many parts of Mexico. If maintaining basic hygiene is compromised by chronic water shortages, it seems the environment becomes ripe for infectious diseases to blossom.

Taking a global view of this issue makes it very clear why pandemics are expected to emanate from Africa and Asia –countries like China and India are among the most “water-stresssed” in the world. And Mexico appears to be on a par with them. Until a workable plan for redistributing water to needy populations is adopted, water-stressed destinations will be increasingly problematic for economic development and tourism.  The Healthy Travel Blog will keep digging into underlying environmental issues that world travelers need to understand to keep their travels safe and healthy.

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