The WHO on Thursday “announced the deaths of two men from H5N1 avian influenza, one from Egypt and another from China whose death was reported earlier in the media,” CIDRAP News reports. Both men are suspected to have contracted the virus from avian sources, although an investigation into the man from China’s exposure to the virus is ongoing, according to news service. “The two infections and deaths push the WHO global H5N1 count to 576 cases and 339 deaths. According to WHO records, the number of H5N1 cases and deaths reported in 2011 so far are modestly higher than 2010 (60 cases versus 48, and 33 deaths versus 24),” CIDRAP writes (Schnirring, 1/5).
Author Laurie Garrett, senior fellow for global health at the Council on Foreign Relations, writes in this Foreign Policy opinion piece that the announcement that researchers from Norway and the U.S. have developed a supercontagious variety of bird flu “has highlighted a dilemma: How do you balance the universal mandate for scientific openness against the fear that terrorists or rogue states might follow the researchers’ work — using it as catastrophic cookbooks for global influenza contagion?” She continues, “Along with several older studies that are now garnering fresh attention, [the research] has revealed that the political world is completely unprepared for the synthetic-biology revolution” and notes “there are no consistent, internationally agreed-upon regulations governing synthetic biology, the extraordinarily popular and fruitful 21st-century field of genetic manipulation of microorganisms.”
Research into transmissible bird flu strains remains “urgent” despite flu investigators’ recent declaration of a “60-day moratorium on avian flu transmission because of the current controversy,” Yoshihiro Kawaoka of Tokyo University and the University of Wisconsin-Madison, “a lead researcher on one of two recent studies showing how H5N1 can be transmitted through airborne droplets” among ferrets, writes in a commentary published Wednesday in the journal Nature, Reuters reports. In December, the U.S. National Science Advisory Board for Biosecurity “asked two leading journals, Nature and Science, to withhold details of both studies for fear it could be used by bioterrorists,” the news agency notes.
Rep. Sensenbrenner Sends Second Letter Inquiring About U.S. Government’s Review Of Controversial H5N1 Studies
“A senior Republican in the U.S. House of Representatives is asking more questions about how the U.S. government reviewed two controversial H5N1 avian influenza studies, and how it wrote a new policy for reviewing taxpayer-funded studies that might be used for good and evil,” ScienceInsider reports. Rep. Jim Sensenbrenner (R-Wisc.) on Monday “sent a letter [.pdf] to Francis Collins, director of the National Institutes of Health (NIH), asking him to clarify how the National Science Advisory Board for Biosecurity (NSABB) reached its recent decision to recommend publication of the two studies after recommending against publication late last year,” the news service writes, noting, “The letter also asks for more information on which government officials were involved” in the new policy regarding research that might be “dual use research of concern” (DURC).
“The Dutch government has agreed to grant an export license to allow Ron Fouchier, a virologist at the Erasmus Medical University in Rotterdam, to publish his work on H5N1 avian influenza in Science,” Nature’s “News Blog” reports (Owens, 4/27). “Fouchier had to get permission first from the Dutch Department of Economic Affairs, Agriculture and Innovation — in line with E.U. regulations — because a risk existed that the H5N1 virus, as well as its research, ‘could be used for the wrong purposes,’ the Dutch department said in a statement,” according to Agence France-Presse (4/28).
Attendees of a recent WHO meeting that discussed the possible publication in the journals Nature and Science of two studies that modified H5N1 bird flu strains to show the virus could be more easily transmissible among humans decided publication of redacted versions would be ineffective and that “a system for distributing the full paper only to selected individuals would be impossible to set up on any relevant timescale,” a Nature editorial states. Participants also learned “not only does the mammalian transmissibility threat seem greater than previously thought, but also that current avian viruses have some of the mutations identified in the new work,” according to the editorial.
In an analysis (.pdf) published Thursday in the online edition of the journal Science, a team led by virologist Peter Palese of Mount Sinai School of Medicine in New York raises questions about the WHO’s estimated fatality rate from H5N1 bird flu, saying the rate of 59 percent is based on “an estimate of human bird flu cases that is simply too low,” Reuters reports. The WHO has recorded 586 cases of people infected by bird flu, and of those, 346 have died, the news agency notes (Begley, 2/23). Palese and colleagues say “it is not possible to determine an accurate fatality rate for H5N1 infections based on” available data, but “if one assumes a one to two percent infection rate in exposed populations, this would likely translate into millions of people who have been infected, worldwide” (Wang et al., 2/24). And in a paper published Friday in mBio, the journal of the American Society for Microbiology, Michael Osterholm of the University of Minnesota and a member of the U.S. National Science Advisory Board for Biosecurity (NSABB) and a colleague conclude that “[t]he available seroepidemiologic data for human H5N1 infection support the current WHO-reported case-fatality rates of 30% to 80%” (Osterholm/Kelley, 2/24).
U.S. Clinical Trials Show Single Dose Of H1N1 Vaccine Protects Pregnant Women, Children Under 10 Need Two Doses
U.S. government data released on Monday confirmed that a single dose of the vaccine protects pregnant women from the virus, while children under the age of 10 years need two doses of the vaccine, the Washington Post reports. The findings came the same day that a team of experts tasked with monitoring the national H1N1 vaccine campaign for any adverse side effects met for the first time.
A WHO official on Tuesday backed the Afghan government’s decision to declare H1N1 (swine flu) a health emergency, forcing the closure of all schools in the country for three weeks in an effort to contain the virus, IRIN reports. H1N1 has reportedly infected over 300 people, resulting in two deaths.
The WHO is looking into reports that patients with “severely suppressed immune systems” in Britain and the U.S. developed resistance Tamiflu, which is used to treat the symptoms of H1N1 (swine flu), a spokesman for the organization said Tuesday, Reuters reports.